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SECTION 12.1 THE ARITHMETIC OF EQUATIONS Use the 3-step problem-solving approach you learned in Chapter 1. 1. An apple pie needs 10 large apples, 2 crusts (top and bottom), and 1 tablespoon of cinnamon. Write a balanced equation that fits this situation. How many apples are needed to make 25 pies? 2. Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, KCIO3(s). Write the balanced equation. How many moles of oxygen are produced from 12 moles of potassium chlorate? 3. Using the equation from problem 2, how many moles of oxygen are produced from 14 moles of potassium chlorate? 4. Two molecules of hydrogen react with one molecule of oxygen to produce two molecules of water. How many molecules of water are produced from 2.0 × 1023 molecules of oxygen? How many moles of water are produced from 22.5 moles of oxygen?

SECTION 12.1 THE ARITHMETIC OF EQUATIONS Use the 3-step problem-solving approach you learned in Chapter 1. 1. An apple pie needs 10 large apples, 2 crusts (top and bottom), and 1 tablespoon of cinnamon. Write a balanced equation that fits this situation. How many apples are needed to make 25 pies? 2. Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, KCIO3(s). Write the balanced equation. How many moles of oxygen are produced from 12 moles of potassium chlorate? 3. Using the equation from problem 2, how many moles of oxygen are produced from 14 moles of potassium chlorate? 4. Two molecules of hydrogen react with one molecule of oxygen to produce two molecules of water. How many molecules of water are produced from 2.0 × 1023 molecules of oxygen? How many moles of water are produced from 22.5 moles of oxygen?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Practice Problems In your notebook, solve the following problems. SECTION 12.1 THE ARITHMETIC OF EQUATIONS Use the 3-step problem-solving approach you learned in Chapter 1. 1. An apple pie needs 10 large apples, 2 crusts (top and bottom), and 1 tablespoon of cinnamon. Write a balanced equation that fits this situation. How many apples are needed to make 25 pies? 2. Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, KCIO3(s). Write the balanced equation. How many moles of oxygen are produced from 12 moles of potassium chlorate? 3. Using the equation from problem 2, how many moles of oxygen are produced from 14 moles of potassium chlorate? 4. Two molecules of hydrogen react with one molecule of oxygen to produce two molecules of water. How many molecules of water are produced from 2.0 × 1023 molecules of oxygen? How many moles of water are produced from 22.5 moles of oxygen? SECTION 12.2 CHEMICAL CALCULATIONS 1. Calculate the number of moles of hydrogen chloride produced from 10 moles of hydrogen. H2(g) + Cl2(g) → 2HCI(g) 2. Calculate the number of moles of chlorine needed to form 14 moles of iron(III) chloride. 2Fe(s) + 3Cl,(g) → 2F€CI3(s) 3. Calculate the number of grams of nitrogen dioxide that are produced from 4 moles of nitric oxide. 2NO(g) + O2(g) → 2NO,(g) 4. Calculate the mass of oxygen produced from the decomposition of 75.0 g of potassium chlorate. 2KCIO3,(s) → 2KCI(s) + 30,(g) 5. Calculate the mass of silver needed to react with chlorine to produce 84 g of silver chloride. (Hint: Write a balanced equation first.)
Transcribed Image Text:Practice Problems In your notebook, solve the following problems. SECTION 12.1 THE ARITHMETIC OF EQUATIONS Use the 3-step problem-solving approach you learned in Chapter 1. 1. An apple pie needs 10 large apples, 2 crusts (top and bottom), and 1 tablespoon of cinnamon. Write a balanced equation that fits this situation. How many apples are needed to make 25 pies? 2. Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, KCIO3(s). Write the balanced equation. How many moles of oxygen are produced from 12 moles of potassium chlorate? 3. Using the equation from problem 2, how many moles of oxygen are produced from 14 moles of potassium chlorate? 4. Two molecules of hydrogen react with one molecule of oxygen to produce two molecules of water. How many molecules of water are produced from 2.0 × 1023 molecules of oxygen? How many moles of water are produced from 22.5 moles of oxygen? SECTION 12.2 CHEMICAL CALCULATIONS 1. Calculate the number of moles of hydrogen chloride produced from 10 moles of hydrogen. H2(g) + Cl2(g) → 2HCI(g) 2. Calculate the number of moles of chlorine needed to form 14 moles of iron(III) chloride. 2Fe(s) + 3Cl,(g) → 2F€CI3(s) 3. Calculate the number of grams of nitrogen dioxide that are produced from 4 moles of nitric oxide. 2NO(g) + O2(g) → 2NO,(g) 4. Calculate the mass of oxygen produced from the decomposition of 75.0 g of potassium chlorate. 2KCIO3,(s) → 2KCI(s) + 30,(g) 5. Calculate the mass of silver needed to react with chlorine to produce 84 g of silver chloride. (Hint: Write a balanced equation first.)
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