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1. The study of the amounts or reactants used, and products formed from a chemical reaction is called? a. Chemistry b. Pharmacology c. Stoichiometry d. Physics

1. The study of the amounts or reactants used, and products formed from a chemical reaction is called? a. Chemistry b. Pharmacology c. Stoichiometry d. Physics

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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1101 Q26 Stoichiometry Calculations 1. The study of the amounts or reactants used, and products formed from a chemical reaction is called? a. Chemistry b. Pharmacology 2. Using the following equation, if there are two moles of O₂ available, which mole ratio will tell you how much water (H₂O) is produced? a. 4 moles H₂O / 5 moles O₂ C3H8+5023 CO₂ + 4H₂O a. 1 mole C3H8/ 5 moles O₂ a. 3. Using the following equation, if there are 10 moles of propane (C30s) available, which mole ratio will tell you how much oxygen (O₂) is required for the reaction to take place? 3 moles c. Stoichiometry C3H8 +5023 CO₂ + 4H₂O Answer 21.2 grams b. 5 moles 0₂/4 mole H₂O stoms of 4. How many moles of hydrogen gas (H₂) are needed to react completely with two moles of nitrogen gas? 8. Zinc was drop 3 H₂ + N₂ 2 NH3 b. 6 moles b. 5 moles O₂ / 1 mole C3H8 d. Physics c. 9 moles 9, 110,57 moles of ethane gas (CH) is bumed con Cu + 2 AgNO3 ----> Cu(NO3)2 + 2Ag 5. How many grams of copper would be needed to replace 72.0 g of silver from a silver nitrate solution? 6H₂0 d. 12 moles
Transcribed Image Text:1101 Q26 Stoichiometry Calculations 1. The study of the amounts or reactants used, and products formed from a chemical reaction is called? a. Chemistry b. Pharmacology 2. Using the following equation, if there are two moles of O₂ available, which mole ratio will tell you how much water (H₂O) is produced? a. 4 moles H₂O / 5 moles O₂ C3H8+5023 CO₂ + 4H₂O a. 1 mole C3H8/ 5 moles O₂ a. 3. Using the following equation, if there are 10 moles of propane (C30s) available, which mole ratio will tell you how much oxygen (O₂) is required for the reaction to take place? 3 moles c. Stoichiometry C3H8 +5023 CO₂ + 4H₂O Answer 21.2 grams b. 5 moles 0₂/4 mole H₂O stoms of 4. How many moles of hydrogen gas (H₂) are needed to react completely with two moles of nitrogen gas? 8. Zinc was drop 3 H₂ + N₂ 2 NH3 b. 6 moles b. 5 moles O₂ / 1 mole C3H8 d. Physics c. 9 moles 9, 110,57 moles of ethane gas (CH) is bumed con Cu + 2 AgNO3 ----> Cu(NO3)2 + 2Ag 5. How many grams of copper would be needed to replace 72.0 g of silver from a silver nitrate solution? 6H₂0 d. 12 moles
6. How many molecules of aluminum chloride are produced when 72.0g of hydrochloric acid (HCI) is reacted with excess aluminum? 6HCI + 2AI ---> 2AlCl3 + 3H₂ Answer 3.96 x 1023 molecules 7. How many grams of carbon must be burned to produce 100.0 grams of carbon dioxide? C + O₂ ----> CO₂ Answer 27.29 grams 8. Zinc was dropped into a solution containing 100.0 g of HCI. How many moles of hydrogen gas was produced? Zn + 2HCI ----> ZnCl₂ + H₂ Answer 1.37 moles fa reach 9. If 0.67 moles of ethane gas (C₂H6) is burned completely, calculate the percent yield if 52.5 grams of CO₂ were obtained from the reaction. 2C₂H6+ 70₂ Answer 89.02% 4CO₂ + 6H₂O mala
Transcribed Image Text:6. How many molecules of aluminum chloride are produced when 72.0g of hydrochloric acid (HCI) is reacted with excess aluminum? 6HCI + 2AI ---> 2AlCl3 + 3H₂ Answer 3.96 x 1023 molecules 7. How many grams of carbon must be burned to produce 100.0 grams of carbon dioxide? C + O₂ ----> CO₂ Answer 27.29 grams 8. Zinc was dropped into a solution containing 100.0 g of HCI. How many moles of hydrogen gas was produced? Zn + 2HCI ----> ZnCl₂ + H₂ Answer 1.37 moles fa reach 9. If 0.67 moles of ethane gas (C₂H6) is burned completely, calculate the percent yield if 52.5 grams of CO₂ were obtained from the reaction. 2C₂H6+ 70₂ Answer 89.02% 4CO₂ + 6H₂O mala
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