How do you calculate the mass of an atom of silver in a way that a 7th grader can understand it?

Answer:

66 grams of ice would have to melt to lower the temperature of 352 mL of water from 15 °C to 0 °C.

Explanation:

To calculate the amount of ice that would have to melt to lower the temperature of 352 mL of water from 15 °C to 0 °C, we need to use the formula:

Q = m_water * c_water * ΔT_water + m_ice * Lf

where,
Q = the amount of heat transferred,
m_water = the mass of water, c_water is the specific heat capacity of water,
ΔT_water = the change in temperature of water, m_ice = the mass of ice,
Lf = the specific latent heat of fusion of ice.

First, let's calculate the amount of heat transferred to the water:

Q = m_water * c_water * ΔT_water
Q = 352 g * 1.0 cal/(g*°C) * (15-0) °C
Q = 5,280 cal

Next, we can use the specific latent heat of fusion of ice, which is 80 cal/g, to calculate the amount of heat required to melt the ice:

Q = m_ice * Lf
Q = m_ice * 80 cal/g
m_ice = Q / Lf
m_ice = 5,280 cal / 80 cal/g
m_ice = 66 g

Increasing the temperature increases the rate of reaction

The velocity of the particles present in a system simply intensifies with the rise in temperature.

This thermal energy increases their kinetic energy or intense motion, resulting in forceful, frequent collisions between reactant molecules that lead to an upsurge of triumphed ones and subsequently escalate the reaction rate.

Regarding option A, one should note that pressure is unrelated to temperature since they stand as independent variables throughout this reaction. Going for option B, flammability of the reactants isn't susceptible to alterations upon raising the temperature thus making it an unacceptable statement. Lastly, carbon dioxide does not possess heat-trapping properties rather its content solely contributes to diffusing into the overall surroundings.

Learn more about combustion of propane at

https://brainly.com/question/12328568

#SPJ1

The amount of sodium hydroxide (NaOH) in 27.5 millilitre of 0.280 M Koh is 0.00405 moles.

It's expressed in moles per litre. But if you use the density method, 1M NaOH is a viscosity of 1.04 g/ml, thus 20 ml is 20 times 1.04 g Or 20.8 g/40 gramme/mol (MW of NaOH), which will result in 520 mmol around NaOH within 20 mll of 1 M calcium hydroxide.

The ratio of the supplied mass of the solute to its molar mass is used to express the number of molecules of the solute. As a result, the number of NaOH moles is 20gm40gm/mol, or 0.5 moles. Consequently, 20 g of NaOH .

To know more about sodium hydroxide visit :

https://brainly.com/question/29327783

#SPJ1

The probability that a person travels by car given that they spend more than 4.5 hours a week traveling to the office is 0.169, or approximately 17%.

If a person commutes to work for more than 4.5 hours per week, we may use Bayes' theorem to determine the likelihood that they will drive. Let C stand for the scenario in which a person drives to work, and let T stand for the scenario in which a person commutes to work for more than 4.5 hours a week.

P(T|C) = 0.27, which denotes that there is a 0.27 percent chance that a person drives to work and spends more than 4.5 hours a week doing so. We are also informed that P(T) = 0.44, which denotes that there is a 0.44 percent chance that an individual spends more than 4.5 hours per week traveling to and from work.

We want to find P(C|T), which is the probability that a person travels by car given that they spend more than 4.5 hours a week traveling to the office. Using Bayes' theorem, we have:

P(C|T) = P(T|C) × P(C) / P(T)

where P(C) is the probability that a person travels by car, which we need to find. We can use the fact that the sum of the probabilities of all possible outcomes is 1 to find P(C):

P(C) + P(not C) = 1

where not C denotes the event that a person does not travel to the office by car. Since we know that 27% of the employees travel by car, we have:

P(C) = 0.27

Substituting into Bayes' theorem, we have:

P(C|T) = P(T|C) × P(C) / P(T)

= 0.27 × 0.27 / 0.44

= 0.169

Therefore, the probability that a person travels by car given that they spend more than 4.5 hours a week traveling to the office is 0.169, or approximately 17%.

To learn more about probability, refer to:

https://brainly.com/question/13604758

#SPJ4

Answer: i dont quite know but its A or C

Explanation:

i dont quite know because the "table" is not provided hope this helps! <3

Parallel ray passing through the focal point on the left side of the lens.2. Ray passing through the center of the lens. Ray passing through the focal point on the right side of the lens.

Focal point is the primary point of focus in a work of art, design, or photograph. It is the area that draws the viewers attention and makes them look at the artwork in a certain way. It is usually the most vibrant, detailed, and interesting area of the artwork or photograph. Focal points help to guide the viewer's eye around the artwork, creating an overall impression, while also creating a sense of depth and perspective. Focal points can be created with various elements, such as color, texture, contrast, and shapes.

To learn more about  focal point

https://brainly.com/question/9836383

#SPJ1

[tex]Tristearin: CH_3(CH_2)16COOCH_2CH(OOCR)CH_2OCO(CH_2)16CH_3[/tex]

[tex]Glycerol: CH_2OHCHOHCH_2OH\\Potassium stearate: CH_3(CH_2)16COOK[/tex]

In a structural formula, the atoms of a molecule are shown in the order in which they are bound. Additionally, it shows the several types of covalent bonds between atoms, such as single, double, and triple bonds. Using lines, covalent bonds are displayed

When two or more organic compounds have the same molecular formulae but distinct structures, they are said to be structural isomers, sometimes referred to as constitutional isomers. The two molecules below share the same chemical formula, however, they are distinct due to variations in the methyl group's placement.

to know more about structural formulas here:

brainly.com/question/14611418

#SPJ1

The addition of hydrochloric acid to a reaction mixture can serve several purposes, depending on the specific reaction and its conditions such as: (1) To provide protons (H⁺), (2) To adjust the pH of the reaction mixture, (3) To remove impurities or byproducts.

(1) To provide protons (H⁺) for acid-catalyzed reactions: HCl is a strong acid, meaning it readily donates protons to other molecules. In some reactions, the presence of HCl can accelerate the reaction by increasing the concentration of protons in the reaction mixture. This can facilitate bond-breaking and bond-forming steps in the reaction mechanism.

(2) To adjust the pH of the reaction mixture: In some reactions, it may be necessary to maintain a specific pH range for the reaction to proceed optimally. By adding HCl, the pH of the reaction mixture can be lowered, making the environment more acidic. Conversely, the addition of a base such as sodium hydroxide (NaOH) can raise the pH of the reaction mixture.

(3) To remove impurities or byproducts: In some reactions, the addition of HCl can help to remove impurities or byproducts that may interfere with the desired reaction. For example, HCl can be used to remove metal oxides or hydroxides from a reaction mixture.

Learn more about protons here:

https://brainly.com/question/1252435

#SPJ1

A. Strong electrolyte The phrase "strong electrolyte" refers to an ionic compound's ability to function as an electrolyte when dissolved in water. This results in a high ion concentration and strong electrical conductivity.

Strong electrolytes can dissolve in aqueous solution, but weak electrolytes can not entirely dissociate into the solvent. The electrolyte's molecules and ions are both present in the solution. Strong electrolytes ionise entirely in water while weak electrolytes only partially do so.

An electrolyte that dissolves almost entirely in water is said to be a strong electrolyte. The powerful electrolyte hydrogen chloride  is an illustration. An electrolyte that doesn't entirely dissolve in water is said to be weak.

To know more about electrolyte visit:-

https://brainly.com/question/29771118

#SPJ1

The partial pressure of O₂ in the mixture is 2.18 bar.

The total number of moles of gas in the bottle is calculated as;

PV = nRT

n_total = PV/RT

= (5.68 bar x 2.97 L) / (0.0831 L bar/mol K x 298 K)

= 0.68 mol

mole fraction of N₂ in the mixture:

X_N₂ = n_N₂ / n_total

= 0.225 mol / 0.68 mol

= 0.33

Mole fraction of CO₂ in the mixture;

P_CO₂ = X_CO₂ (P_total)

0.309 bar = X_CO₂ x 5.68 bar

X_CO₂ = 0.0544

The mole fraction of O₂;

X_O₂ = 1 - X_N₂ - X_CO₂

X_O₂ = 1 - 0.33 - 0.0544 = 0.616

The partial pressure of O₂:

P_O₂ = X_O₂(P_total)

P_O₂ = 0.616 x 5.68 bar = 2.18 bar

Learn more about partial pressure here: https://brainly.com/question/19813237

#SPJ1

Five is the total number of peaks due to singly charged ions in the complete mass spectrum of chlorine, [tex]Cl_{2}[/tex]

How many peaks do [tex]Cl_{2}[/tex]'s molecular ions have?

The mass spectra of compounds with a single chlorine atom show two molecular ion peaks. This is because there are two isotopes of chlorine, 35Cl and 37Cl.

The molecular ion and fragment ions will both have peaks in the mass spectrum. When a mass spectrum is interpreted, a specific molecule can be located, confirmed, or its quantity can be calculated. the base summit of a mass spectrum's tallest (strongest) peak, caused by the ion with the highest relative abundance

To learn more about chlorine atom use:

brainly.com/question/30861877

#SPJ1

Five is the total number of peaks due to singly charged ions in the complete mass spectrum of chlorine, [tex]Cl_{2}[/tex].

How many peaks do 's molecular ions have?

The mass spectra of compounds with a single chlorine atom show two molecular ion peaks. This is because there are two isotopes of chlorine, 35Cl and 37Cl.

The molecular ion and fragment ions will both have peaks in the mass spectrum. When a mass spectrum is interpreted, a specific molecule can be located, confirmed, or its quantity can be calculated. the base summit of a mass spectrum's tallest (strongest) peak, caused by the ion with the highest relative abundance

To learn more about chlorine atom use:

brainly.com/question/30861877

#SPJ1

The initial temperature of the gas was 184.59 ∘C.

The combined gas law, which links a gas's pressure, volume and temperature can be used to address this issue:

[tex]P1 * V1 / T1 = P2 * V2 / T2.[/tex]

Where

Since the pressure inside the container is constant because it is sealed, we can simplify the equation to read[tex](V1 / T1) = (V2 / T2).[/tex]

We obtain the following by substituting the given values:

(2.75 L/T1) = (1.75 L/291.15 K)

where we add 273.15 K to the final temperature of 18 C to convert it to Kelvin.

Simplifying, we get:

T1 = (2.75 L / 1.75 L) * 291.15 K

T1 = 457.74 K

Finally, we convert the temperature back to degrees Celsius by subtracting 273.15 K:

T1 = 184.59 ∘C

Therefore, the initial temperature of the gas was 184.59 ∘C.

Learn more about combined gas law here : brainly.com/question/29341891

#SPJ1

3.212 moles of water are produced with 45.0g of N₂O.

What are the moles?

Moles are a unit of measurement used in chemistry to represent the amount of a substance. One mole is defined as the amount of a substance that contains the same number of entities (such as atoms, molecules, or ions) as there are atoms in 12 grams of carbon-12. This number is known as Avogadro's number and is approximately equal to 6.022 x [tex]10^{23}[/tex] entities per mole.

To determine the number of moles of water produced from 45.0g of N₂O, we first need to write the balanced chemical equation for the reaction that produces water and N₂O. Let's assume that the reaction is:

2 H₂ + N₂O → 2 H₂O + N₂

From the equation, we can see that 1 mole of N₂O produces 2 moles of H₂O.

The molar mass of N₂O is:

N₂O: 28.02 g/mol (N: 14.01 g/mol, O: 16.00 g/mol)

To find the number of moles of N₂O in 45.0g, we can use the formula:

moles = mass / molar mass

moles of N₂O = 45.0g / 28.02 g/mol = 1.606 mol

Since 1 mole of N₂O produces 2 moles of H₂O, the number of moles of H₂O produced is:

moles of H₂O = 1.606 mol N₂O × 2 mol H₂O / 1 mol N₂O = 3.212 mol

Therefore, 45.0g of N₂O produces 3.212 moles of water.

To know more about moles, visit:

https://brainly.com/question/12948581

#SPJ1

Complete question is: 3.212 moles of water are produced with 45.0g of N₂O.

According to the problem moles of water are produced with 45.0 g N₂O x (2 mol H₂O / 44.0 g N₂O) = 2.05 mol H₂O.

Moles are small, burrowing mammals that are found throughout the world. They have distinctive, black-brown fur, small eyes, and a pointed snout. Moles prefer to live in moist, shady soil, where they build extensive underground tunnel systems. Within these tunnels, moles forage for food, mate, and raise their young. They primarily eat insects, worms, and other invertebrates, and their tunnels can help aerate soil and aid in plant growth. Moles are also important prey species for many predators, including badgers and coyotes.

To learn more about moles

https://brainly.com/question/15356425

#SPJ1

Answer: The calcium ion has a 2+ charge and the phosphate ion has a 3- charge.

The work done by a A person uses their muscles and puts in a force of 5 Newtons (N) to move a box a distance of 10 meters, but the box did not move is 50 Nm. Thus, to move the box work of more than 50Nm needs to be done. The correct option to this question is C.

Work done(W) = Force(F)× distance(D)

Substituting the value in above equation,

W= 5×10

W= 50 Nm

The energy that is transmitted to or from an item by applying force along a displacement is referred to as work in physics. The work is defined as the sum of the force intensity and the distance traveled for a constant force acting in the direction of motion.

The product of the force component acting in the displacement's direction and its size is known as the work done by a force. Formula. By multiplying Force and Distance in the direction of the force, one can determine work. W = F × d.

For more information on work done kindly visit to

https://brainly.com/question/30346539

#SPJ1

Complete question: A person uses their muscles and puts in a force of 5 Newtons (N) to move a box a distance of 10 meters, but the box did not move. How much work was done? (Hint: W=FxD)

Responses

A. 5 Nm

B. 500 Nm

C. 50Nm

D. 0 Nm

According to the problem Arrange the objects from smallest to largest is Pencil, Pillow, Basketball, House.

The smallest unit of measurement is the atom, which is the smallest particle of an element that still retains its chemical identity. Atoms are composed of even smaller particles, including protons, neutrons, and electrons. The size of an atom can vary depending on the element, but they typically measure between 0.1 and 0.5 nanometers in diameter.The smallest unit of measurement is the Planck Length, which is 1.616229 x 10-35 meters. This is the smallest measurement of length that is possible in the universe. It is also the smallest unit of measurement that has a meaning in physics.

To learn more about smallest

https://brainly.com/question/26842818

#SPJ1

Answer:

When conducting a chemistry lab experiment using chalk (calcium carbonate) in vinegar (acetic acid), there are several limitations and precautions to be aware of:

Limitations of chalk in vinegar chemistry experiment:

Reaction rate: The reaction between chalk and vinegar is relatively slow, which may require a longer observation period or higher concentration of vinegar to observe significant changes within a reasonable time frame.

Solubility: Chalk may not dissolve completely in vinegar, resulting in incomplete reaction or difficulty in obtaining accurate results.

Product formation: The reaction between chalk and vinegar produces carbon dioxide gas, water, and calcium acetate. The carbon dioxide gas may escape into the atmosphere, leading to loss of product and inaccurate measurements.

pH: Chalk is a basic substance, and the reaction with vinegar, which is acidic, may result in neutralization, leading to a decrease in the overall acidity of the reaction mixture.

Precautions to take in chalk in vinegar chemistry experiment:

Ventilation: The reaction between chalk and vinegar produces carbon dioxide gas, which can displace air and potentially cause asphyxiation in a closed or poorly ventilated area. Conduct the experiment in a well-ventilated area or under a fume hood to ensure adequate air circulation.

Eye and skin protection: Vinegar is an acid and can cause skin and eye irritation. Wear appropriate personal protective equipment (PPE), such as gloves and goggles, to protect yourself from contact with vinegar or any other chemicals used in the experiment.

Chemical handling: Handle the chemicals, including chalk and vinegar, with care, following proper lab safety protocols. Avoid ingestion, inhalation, or direct contact with the chemicals, and dispose of them properly according to local regulations.

Accuracy in measurements: Use calibrated and accurate measuring tools, such as graduated cylinders or burettes, to measure the amount of chalk, vinegar, and other reagents accurately. This will ensure the reliability and accuracy of the experimental results.

Observations: Make careful and detailed observations during the experiment, noting any changes in appearance, gas evolution, or other relevant observations. Take measurements at appropriate intervals and record the data accurately for analysis and interpretation.

It is important to follow good laboratory practices, including proper chemical handling, accurate measurements, and cautious observations, to ensure safe and reliable results in a chalk in vinegar chemistry lab experiment. Consult with a qualified instructor or supervisor for specific guidelines and precautions related to your experiment.

Yes, we can use the moles of reactants and products at equilibrium instead of their concentrations to calculate the equilibrium constant because the molar amount of a substance is directly proportional to its concentration.

The equilibrium constant of a chemical reaction is a numerical value that relates the concentrations (or pressures) of the reactants and products at equilibrium.

The equilibrium constant expression for the hypothetical reaction, A + B ⇌ X + 2Y, is given by:

[tex]Kc = [X][Y]^2 / [A][B][/tex]

where [X], [Y], [A], and [B] represent the equilibrium concentrations of X, Y, A, and B, respectively.

Yes, we can use the moles of reactants and products at equilibrium instead of their concentrations to calculate the equilibrium constant. This is because the molar amount of a substance is directly proportional to its concentration. So, if we know the moles of reactants and products at equilibrium, we can easily calculate their concentrations, and hence the equilibrium constant.

If the initial ratio of CH₃COOH and C₂H₅OH is adjusted to 2:1, it will change the equilibrium constant value. This is because the equilibrium constant depends on the relative concentrations of reactants and products at equilibrium. When the initial ratio of reactants is changed, the equilibrium concentrations of reactants and products will also change to reach a new equilibrium position. As a result, the equilibrium constant value will also change.

In general, it is difficult to predict the exact effect of changing the initial ratio of reactants on the equilibrium constant value without knowing the specific reaction and its reaction quotient. However, we can say that increasing the concentration of one reactant relative to the other will tend to shift the equilibrium position in the direction that consumes that reactant. As a result, the equilibrium constant value may increase or decrease depending on the specific reaction.

Learn more about equilibrium here:

https://brainly.com/question/30807709

#SPJ1

The amount of heat required to raise the temperature of the 34.2 g sample of aluminum by 34 oC is 1043.52 J.

What is Temperature?

Temperature is a measure of the average kinetic energy of the particles in a substance. It is a physical property that determines the direction of heat flow between two objects or systems in contact with each other. Temperature is measured in degrees Celsius (°C) or Fahrenheit (°F), or in kelvin (K) in the International System of Units (SI).

The amount of heat (q) required to raise the temperature of a substance can be calculated using the formula:

q = m x c x ΔT

Where:

m = mass of the substance (in grams)

c = specific heat of the substance (in J/g oC)

ΔT = change in temperature (in oC)

Plugging in the values given:

m = 34.2 g

c = 0.9 J/g oC

ΔT = 34 oC

q = (34.2 g) x (0.9 J/g oC) x (34 oC)

q = 1043.52 J

Therefore, the amount of heat required to raise the temperature of the 34.2 g sample of aluminum by 34 oC is 1043.52 J.

Learn more about Temperature

brainly.com/question/26866637

#SPJ1

The proximity of unsaturated groups (C=C, C=O, aromatic) and electronegative atoms (O, N, halogen) has an impact on the proton NMR chemical shift. Electronegative groups shift to the left (down field; ppm rise).

The chemical shift in nuclear magnetic resonance (NMR) spectroscopy refers to the atomic nucleus' resonant frequency in relation to a standard in a magnetic field. The location and quantity of chemical changes frequently serve as diagnostic indicators of molecular structure.

You take into account the chemically non-equivalent proton(s) one at a time while making chemical shift predictions. Find the origin of each proton or proton pair that is not chemically comparable. Whether the proton(s) is/are linked to a methyl, methene, or methine determines the beginning point.

learn more about nuclear magnetic resonance

https://brainly.com/question/21024524

#SPJ1

The general form of a neutralization reaction is HF + FrOH → FrF + H₂O

We refer to this as a neutralisation reaction. Only this reaction, which produces NaCl and water as products, is a neutralisation reaction since it involves HCl and NaOH. The resulting response is listed below: NaCl(aq) + H₂O = HCl(aq) + NaOH(aq) (l)

The interaction of H⁺ ions and OH⁻ ions produces water in a neutralisation reaction, which occurs when an acid and a base combine to make water and a salt. The neutralisation of a strong acid and strong base yields a pH of 7.

To know more about reaction visit:-

https://brainly.com/question/28984750

#SPJ1

The sample of nitrogen gas will occupy 236.54 mL of volume at 1.05 atm pressure.

Boyle's law is the ideal law that defines the relationship between pressure and volume of gases. A law is given if the temperature is kept constant. Pressure and volume exhibit an inverse relationship.

The Boyle's Law is given as:

P₁V₁ = P₂V₂

Given,

Initial pressure (P₁) = 0.974 atm

Initial volume (V₁) = 255 mL

Final pressure (P₂) = 1.05 atm

Final volume = V₂

The final volume at 1.05 atm is calculated by substituting values in Boyle's Law as:

P₁V₁ = P₂V₂

0.974 × 255 = 1.05 V₂

V₂ =  248.37 ÷ 1.05

= 236.54 mL

To know more about Boyle's law, visit:

https://brainly.com/question/30367133

#SPJ1

Answer:

115.6 kJ/mol

Explanation:

The ΔG of a reaction can be calculated using the following equation:

ΔG = ΔG° + RT ln(Q)

where:

ΔG° is the standard free energy change, which is given as 137.0 kJ/mol in this case

R is the gas constant, which is 8.314 J/(mol·K)

T is the temperature in Kelvin, which is 25°C + 273.15 = 298.15 K

Q is the reaction quotient, which is the ratio of the concentrations of the products to the concentrations of the reactants, each raised to their stoichiometric coefficients.

From the chemical equation given, the stoichiometric coefficients of Mg2+ and PO43- are 3 and 2 respectively. Therefore, the reaction quotient can be expressed as:

Q = [Mg2+]^3 [PO43-]^2

Substituting the given initial concentrations of Mg2+ and PO43- into the reaction quotient expression, we get:

Q = (0.65 M)^3 (0.43 M)^2 = 0.011 M^5

Now we can calculate the ΔG of the reaction:

ΔG = ΔG° + RT ln(Q)

ΔG = (137.0 kJ/mol) + (8.314 J/(mol·K) × 298.15 K) × ln(0.011 M^5)

ΔG = 137.0 kJ/mol - 21.38 kJ/mol

ΔG = 115.6 kJ/mol

Therefore, the ΔG for the reaction at 25°C and the given initial concentrations of Mg2+ and PO43- is 115.6 kJ/mol.

The ratio of final pressure to initial pressure, given that the volume and number of moles of the gas are held constant is 1.31

The following data were obtained from the question:

P₁ / T₁ = P₂ / T₂

P₁ / 308.15 = P₂ / 403.15

Cross multiply

308.15 × P₂ = P₁ × 403.15

Divide both sides by 308.15

P₂ = (P₁ × 403.15) / 308.15

Divide both sides by P₁

P₂ / P₁ = 403.15 / 308.15

P₂ / P₁ = 1.31

Thus, the ratio of final pressure to initial pressure, is 1.31

Learn more about pressure:

https://brainly.com/question/15343985

#SPJ1

Answer:

so you hit a 360

Explanation:

and you need to eats the food

The volume of oxygen gas at STP from the decomposition of 283 g of potassium chlorate is 77.7 L.

The volume of oxygen gas at STP that will be produced is calculated as;

Number of moles of KClO₃ = 283 g / 122.6 g/mol = 2.31 mol

Number of moles of O₂ = (3/2) x 2.31 mol = 3.47 mol

Volume of O₂ at STP = 3.47 mol x 22.4 L/mol = 77.7 L

Therefore, 77.7 liters of oxygen gas would be produced from the decomposition of 283 g of potassium chlorate at STP.

Learn more about volume of gas here: https://brainly.com/question/25736513

#SPJ1

It is possible to synthesize acetophenone from benzene via Friedel-Crafts acylation reaction using acetyl chloride and a Lewis acid catalyst such as aluminum chloride.

What is an acylation reaction?

The reaction would proceed as follows:

1. Acetyl chloride is reacted with aluminum chloride to form the acylium ion, [tex]CH_{3}CO^{+}[/tex].

2. The acylium ion is then attacked by benzene, forming a resonance-stabilized intermediate.

3. Protonation and deprotonation steps lead to the formation of the final product, acetophenone.

The overall reaction can be represented as:

[tex]C_{6}H_{6}[/tex] + [tex]CH_{3}COCl[/tex] + [tex]AlCL_{3}[/tex] → [tex]C_{6}H_{5}COCH_{3}[/tex] + [tex]HCl_{}[/tex] + [tex]AlCl_{4}^{-}[/tex]

Note that this reaction is not a conversion of sodium benzoate to acetophenone, but rather a synthesis of acetophenone from benzene.

To know more about acylation reaction, visit:

https://brainly.com/question/31107543

#SPJ1

Answer:

A

Explanation:

All soluble ionic compounds are strong electrolytes

Benzene has a combustion energy of -3.11 kJ/g.

The balanced formula for benzene combustion is

[tex]6CO_2 + 3H_2O from C_6H_6 + 15O_2[/tex]

We may use the stoichiometric ratio of benzene to oxygen, 1:15, to calculate how much oxygen is necessary to burn 0.500 g of benzene:

O2:15 moles:1 mole [tex]C_6H_6[/tex]

0.000476 moles C6H6: 0.00714 moles [tex]O_2[/tex].

3266 kJ/mol of energy is released during the combustion of one mole of benzene. The energy produced as a result of burning 0.000476 moles of benzene is:

E = 3266 kJ/mol 0.000476 moles.

ΔE = -1.556 kJ

determine how much energy the water has absorbed:

q = m × c × ΔT

According to the preceding question, if the water's beginning temperature is 25.0°C and its end temperature is 36.2°C, the temperature change is:

ΔT = 36.2°C - 25.0°C

ΔT = 11.2°C

Now that the values have been substituted, we can determine how much heat the water has absorbed:

250.0 g, 4.184 J/g, 11.2°C, and q

q = 11,126.4 J

The combustion energy per gramme of benzene may then be calculated by converting the units of E to kJ/g as follows:

ΔE = -1.556 kJ / 0.500 g

ΔE = -3.11 kJ/g

to know more about combustion energy (ΔE) here;

brainly.com/question/15117038

#SPJ1

The combustion energy of benzene is -3.11 kJ/g.

What is  Combustion Energy?

The energy released when a specific quantity of a substance burns entirely in oxygen is known as the heat of combustion of the substance.

Calculation-

1 mole of O2 in 15 moles

0.00714 moles: 0.000476 moles of C6H6.

The form of the energy is:

E is 3266 kJ per mole, or 0.000476 moles.

ΔE = -1.556 kJ

tally up the energy that the water has absorbed:

q = m × c × ΔT

The shift in temperature is:

ΔT = 36.2°C - 25.0°C

ΔT = 11.2°C

How much heat the water has absorbed can be calculated:

4.184 J/g, 11.2 °C, 250.0 g, and q

q = 11,126.4 J

By changing the units of E to kJ/g, it is possible to compute the combustion energy per gramme as follows:

ΔE = -1.556 kJ / 0.500 g

ΔE = -3.11 kJ/g

Click here to learn more about Combustion Energy :

brainly.com/question/15117038

#SPJ1

As a result, the 50 gramme sample's estimated end temperature is around 37.57°C.

The amount of energy in a system that is available to perform beneficial work at a constant temperature is shown by the Helmholtz free energy equation, often known as the thermal equilibrium equation (F = U - TS). The Helmholtz free energy (F), internal energy (U), absolute temperature (T), and entropy are the variables in the Helmholtz equation (S).

Two items are said to have the same temperature when they are in thermal equilibrium. Heat, a kind of energy, is transmitted between the objects as they approach thermal equilibrium.

To know more about temperature visit:-

https://brainly.com/question/30863015

#SPJ1