A balanced equation for the combustion of stearic acid is to be written. Concept introduction: The standard enthalpy of formation ( Δ H f ° ) is the enthalpy change of the formation of 1 mol of compound from its elements and the reactants and products, in this case, is also present in their standard state. Standard state includes 1 atm pressure for gases, 1 M concentration for substances in the aqueous phase and the most stable form of substance at 1 atm pressure and 298 K temperature. For example, metal like sodium exists in solid state and molecular elements like halogen exist in a gaseous state.

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Answer 1

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Definition Definition Number that is expressed before molecules, ions, and atoms such that it balances out the number of components present on either section of the equation in a chemical reaction. Stoichiometric coefficients can be a fraction or a whole number and are useful in determining the mole ratio among the reactants and products. In any equalized chemical equation, the number of components on either side of the equation will be the same.

Chapter 6, Problem 6.87P

(a)

Interpretation Introduction

Interpretation:

A balanced equation for the combustion of stearic acid is to be written.

Concept introduction:

The standard enthalpy of formation (ΔHf°) is the enthalpy change of the formation of 1 mol of compound from its elements and the reactants and products, in this case, is also present in their standard state.

Standard state includes 1 atm pressure for gases, 1 M concentration for substances in the aqueous phase and the most stable form of substance at 1 atm pressure and 298 K temperature. For example, metal like sodium exists in solid state and molecular elements like halogen exist in a gaseous state.

(b)

Interpretation Introduction

Interpretation:

ΔHrxn° for the combustion of stearic acid is to be determined.

Concept introduction:

The standard enthalpy of reaction is calculated by the summation of standard enthalpy of formation of the product minus the summation of standard enthalpy of formation of product at the standard conditions. The formula to calculate the standard enthalpy of reaction (ΔHrxn°) is as follows:

ΔHrxn°=∑mΔHf (products)°−∑mΔHf (reactants)°

Here, m and n are the stoichiometric coefficients of reactants and product in the balanced chemical equation.

(c)

Interpretation Introduction

Interpretation:

The heat that is released in kJ and kcal when 1.00 g of stearic acid is burned completely is to be calculated.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The expression to convert kcal into kJ is:

1 kcal=4.184 kJ

(d)

Interpretation Introduction

Interpretation:

Whether the data that a candy containing 11.0 g fat and provides 100 Cal energy is consistent with the answer calculated in part (c) is to be determined.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The conversion factor to convert nutritional calorie (Calorie) into kcal is:

1 Calorie=1 kcal

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Part 1. Aqueous 0.010M AgNO 3 is slowly added to a 50-ml solution containing both carbonate [co32-] = 0.105 M and sulfate [soy] = 0.164 M anions. Given the ksp of Ag2CO3 and Ag₂ soy below. Answer the ff: Ag₂ CO3 = 2 Ag+ caq) + co} (aq) ksp = 8.10 × 10-12 Ag₂SO4 = 2Ag+(aq) + soy² (aq) ksp = 1.20 × 10-5 a) which salt will precipitate first? (b) What % of the first anion precipitated will remain in the solution. by the time the second anion starts to precipitate? (c) What is the effect of low pH (more acidic) condition on the separate of the carbonate and sulfate anions via silver precipitation? What is the effect of high pH (more basic)? Provide appropriate explanation per answer

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Answer 2

Question

Definition Definition Number that is expressed before molecules, ions, and atoms such that it balances out the number of components present on either section of the equation in a chemical reaction. Stoichiometric coefficients can be a fraction or a whole number and are useful in determining the mole ratio among the reactants and products. In any equalized chemical equation, the number of components on either side of the equation will be the same.

Chapter 6, Problem 6.87P

(a)

Interpretation Introduction

Interpretation:

A balanced equation for the combustion of stearic acid is to be written.

Concept introduction:

The standard enthalpy of formation (ΔHf°) is the enthalpy change of the formation of 1 mol of compound from its elements and the reactants and products, in this case, is also present in their standard state.

Standard state includes 1 atm pressure for gases, 1 M concentration for substances in the aqueous phase and the most stable form of substance at 1 atm pressure and 298 K temperature. For example, metal like sodium exists in solid state and molecular elements like halogen exist in a gaseous state.

(b)

Interpretation Introduction

Interpretation:

ΔHrxn° for the combustion of stearic acid is to be determined.

Concept introduction:

The standard enthalpy of reaction is calculated by the summation of standard enthalpy of formation of the product minus the summation of standard enthalpy of formation of product at the standard conditions. The formula to calculate the standard enthalpy of reaction (ΔHrxn°) is as follows:

ΔHrxn°=∑mΔHf (products)°−∑mΔHf (reactants)°

Here, m and n are the stoichiometric coefficients of reactants and product in the balanced chemical equation.

(c)

Interpretation Introduction

Interpretation:

The heat that is released in kJ and kcal when 1.00 g of stearic acid is burned completely is to be calculated.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The expression to convert kcal into kJ is:

1 kcal=4.184 kJ

(d)

Interpretation Introduction

Interpretation:

Whether the data that a candy containing 11.0 g fat and provides 100 Cal energy is consistent with the answer calculated in part (c) is to be determined.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The conversion factor to convert nutritional calorie (Calorie) into kcal is:

1 Calorie=1 kcal

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Answer 3

Question

Definition Definition Number that is expressed before molecules, ions, and atoms such that it balances out the number of components present on either section of the equation in a chemical reaction. Stoichiometric coefficients can be a fraction or a whole number and are useful in determining the mole ratio among the reactants and products. In any equalized chemical equation, the number of components on either side of the equation will be the same.

Chapter 6, Problem 6.87P

(a)

Interpretation Introduction

Interpretation:

A balanced equation for the combustion of stearic acid is to be written.

Concept introduction:

The standard enthalpy of formation (ΔHf°) is the enthalpy change of the formation of 1 mol of compound from its elements and the reactants and products, in this case, is also present in their standard state.

Standard state includes 1 atm pressure for gases, 1 M concentration for substances in the aqueous phase and the most stable form of substance at 1 atm pressure and 298 K temperature. For example, metal like sodium exists in solid state and molecular elements like halogen exist in a gaseous state.

(b)

Interpretation Introduction

Interpretation:

ΔHrxn° for the combustion of stearic acid is to be determined.

Concept introduction:

The standard enthalpy of reaction is calculated by the summation of standard enthalpy of formation of the product minus the summation of standard enthalpy of formation of product at the standard conditions. The formula to calculate the standard enthalpy of reaction (ΔHrxn°) is as follows:

ΔHrxn°=∑mΔHf (products)°−∑mΔHf (reactants)°

Here, m and n are the stoichiometric coefficients of reactants and product in the balanced chemical equation.

(c)

Interpretation Introduction

Interpretation:

The heat that is released in kJ and kcal when 1.00 g of stearic acid is burned completely is to be calculated.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The expression to convert kcal into kJ is:

1 kcal=4.184 kJ

(d)

Interpretation Introduction

Interpretation:

Whether the data that a candy containing 11.0 g fat and provides 100 Cal energy is consistent with the answer calculated in part (c) is to be determined.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The conversion factor to convert nutritional calorie (Calorie) into kcal is:

1 Calorie=1 kcal

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Number that is expressed before molecules, ions, and atoms such that it balances out the number of components present on either section of the equation in a chemical reaction. Stoichiometric coefficients can be a fraction or a whole number and are useful in determining the mole ratio among the reactants and products. In any equalized chemical equation, the number of components on either side of the equation will be the same.

Chapter 6, Problem 6.87P

(a)

Interpretation Introduction

Interpretation:

A balanced equation for the combustion of stearic acid is to be written.

Concept introduction:

The standard enthalpy of formation (ΔHf°) is the enthalpy change of the formation of 1 mol of compound from its elements and the reactants and products, in this case, is also present in their standard state.

Standard state includes 1 atm pressure for gases, 1 M concentration for substances in the aqueous phase and the most stable form of substance at 1 atm pressure and 298 K temperature. For example, metal like sodium exists in solid state and molecular elements like halogen exist in a gaseous state.

(b)

Interpretation Introduction

Interpretation:

ΔHrxn° for the combustion of stearic acid is to be determined.

Concept introduction:

The standard enthalpy of reaction is calculated by the summation of standard enthalpy of formation of the product minus the summation of standard enthalpy of formation of product at the standard conditions. The formula to calculate the standard enthalpy of reaction (ΔHrxn°) is as follows:

ΔHrxn°=∑mΔHf (products)°−∑mΔHf (reactants)°

Here, m and n are the stoichiometric coefficients of reactants and product in the balanced chemical equation.

(c)

Interpretation Introduction

Interpretation:

The heat that is released in kJ and kcal when 1.00 g of stearic acid is burned completely is to be calculated.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The expression to convert kcal into kJ is:

1 kcal=4.184 kJ

(d)

Interpretation Introduction

Interpretation:

Whether the data that a candy containing 11.0 g fat and provides 100 Cal energy is consistent with the answer calculated in part (c) is to be determined.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The conversion factor to convert nutritional calorie (Calorie) into kcal is:

1 Calorie=1 kcal

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 6, Problem 6.87P

(a)

Interpretation Introduction

Interpretation:

A balanced equation for the combustion of stearic acid is to be written.

Concept introduction:

The standard enthalpy of formation (ΔHf°) is the enthalpy change of the formation of 1 mol of compound from its elements and the reactants and products, in this case, is also present in their standard state.

Standard state includes 1 atm pressure for gases, 1 M concentration for substances in the aqueous phase and the most stable form of substance at 1 atm pressure and 298 K temperature. For example, metal like sodium exists in solid state and molecular elements like halogen exist in a gaseous state.

(b)

Interpretation Introduction

Interpretation:

ΔHrxn° for the combustion of stearic acid is to be determined.

Concept introduction:

The standard enthalpy of reaction is calculated by the summation of standard enthalpy of formation of the product minus the summation of standard enthalpy of formation of product at the standard conditions. The formula to calculate the standard enthalpy of reaction (ΔHrxn°) is as follows:

ΔHrxn°=∑mΔHf (products)°−∑mΔHf (reactants)°

Here, m and n are the stoichiometric coefficients of reactants and product in the balanced chemical equation.

(c)

Interpretation Introduction

Interpretation:

The heat that is released in kJ and kcal when 1.00 g of stearic acid is burned completely is to be calculated.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The expression to convert kcal into kJ is:

1 kcal=4.184 kJ

(d)

Interpretation Introduction

Interpretation:

Whether the data that a candy containing 11.0 g fat and provides 100 Cal energy is consistent with the answer calculated in part (c) is to be determined.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The conversion factor to convert nutritional calorie (Calorie) into kcal is:

1 Calorie=1 kcal

Answer 6

Chapter 6, Problem 6.87P

(a)

Interpretation Introduction

Interpretation:

A balanced equation for the combustion of stearic acid is to be written.

Concept introduction:

The standard enthalpy of formation (ΔHf°) is the enthalpy change of the formation of 1 mol of compound from its elements and the reactants and products, in this case, is also present in their standard state.

Standard state includes 1 atm pressure for gases, 1 M concentration for substances in the aqueous phase and the most stable form of substance at 1 atm pressure and 298 K temperature. For example, metal like sodium exists in solid state and molecular elements like halogen exist in a gaseous state.

Answer 7

Chapter 6, Problem 6.87P

(a)

Interpretation Introduction

Interpretation:

A balanced equation for the combustion of stearic acid is to be written.

Concept introduction:

The standard enthalpy of formation (ΔHf°) is the enthalpy change of the formation of 1 mol of compound from its elements and the reactants and products, in this case, is also present in their standard state.

Standard state includes 1 atm pressure for gases, 1 M concentration for substances in the aqueous phase and the most stable form of substance at 1 atm pressure and 298 K temperature. For example, metal like sodium exists in solid state and molecular elements like halogen exist in a gaseous state.

Answer 8

(b)

Interpretation Introduction

Interpretation:

ΔHrxn° for the combustion of stearic acid is to be determined.

Concept introduction:

The standard enthalpy of reaction is calculated by the summation of standard enthalpy of formation of the product minus the summation of standard enthalpy of formation of product at the standard conditions. The formula to calculate the standard enthalpy of reaction (ΔHrxn°) is as follows:

ΔHrxn°=∑mΔHf (products)°−∑mΔHf (reactants)°

Here, m and n are the stoichiometric coefficients of reactants and product in the balanced chemical equation.

Answer 9

(b)

Interpretation Introduction

Interpretation:

ΔHrxn° for the combustion of stearic acid is to be determined.

Concept introduction:

The standard enthalpy of reaction is calculated by the summation of standard enthalpy of formation of the product minus the summation of standard enthalpy of formation of product at the standard conditions. The formula to calculate the standard enthalpy of reaction (ΔHrxn°) is as follows:

ΔHrxn°=∑mΔHf (products)°−∑mΔHf (reactants)°

Here, m and n are the stoichiometric coefficients of reactants and product in the balanced chemical equation.

Answer 10

(c)

Interpretation Introduction

Interpretation:

The heat that is released in kJ and kcal when 1.00 g of stearic acid is burned completely is to be calculated.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The expression to convert kcal into kJ is:

1 kcal=4.184 kJ

Answer 11

(c)

Interpretation Introduction

Interpretation:

The heat that is released in kJ and kcal when 1.00 g of stearic acid is burned completely is to be calculated.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The expression to convert kcal into kJ is:

1 kcal=4.184 kJ

Answer 12

(d)

Interpretation Introduction

Interpretation:

Whether the data that a candy containing 11.0 g fat and provides 100 Cal energy is consistent with the answer calculated in part (c) is to be determined.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The conversion factor to convert nutritional calorie (Calorie) into kcal is:

1 Calorie=1 kcal

Answer 13

(d)

Interpretation Introduction

Interpretation:

Whether the data that a candy containing 11.0 g fat and provides 100 Cal energy is consistent with the answer calculated in part (c) is to be determined.

Concept introduction:

Heat (q) is the energy transferred as a consequence of the difference of the temperature between the system and surrounding.

The heat released by the system is negative and the heat taken by the system is positive.

The amount of heat released by the system is equal to the amount of amount absorbed by the surrounding.

The conversion factor to convert nutritional calorie (Calorie) into kcal is:

1 Calorie=1 kcal

Answer 14

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Answer 15

Expert Solution & Answer

Answer 16

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Answer 17

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