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2. A chemist analyzed a sample of a compound that was known to contain potassium, manganese, and oxygen. She obtained the following results: The total mass of the sample = 316.08 g Mass of potassium = 78.20 g Mass of manganese = 109.88 g Determine the percentage composition of the compound 3. If at S.T.P 4.48 L of NH3(g) is allowed to react with 9.03 x 10²2 molecules of O₂(g), please answer the questions for the following reaction: 4NH3(g) + 5O₂(g) → 6H₂O(g) + 4NO(g) a. What is the limiting reactant? Please show all your work. b. What mass of nitrogen monoxide can be expected? c. If 3.00 g of nitrogen monoxide recovered, what would the percentage yield be? d. What reactant is in excess? Following the reaction, what is the remaining mass of the excess reactant?

2. A chemist analyzed a sample of a compound that was known to contain potassium, manganese, and oxygen. She obtained the following results: The total mass of the sample = 316.08 g Mass of potassium = 78.20 g Mass of manganese = 109.88 g Determine the percentage composition of the compound 3. If at S.T.P 4.48 L of NH3(g) is allowed to react with 9.03 x 10²2 molecules of O₂(g), please answer the questions for the following reaction: 4NH3(g) + 5O₂(g) → 6H₂O(g) + 4NO(g) a. What is the limiting reactant? Please show all your work. b. What mass of nitrogen monoxide can be expected? c. If 3.00 g of nitrogen monoxide recovered, what would the percentage yield be? d. What reactant is in excess? Following the reaction, what is the remaining mass of the excess reactant?

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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2. A chemist analyzed a sample of a compound that was known to contain potassium, manganese, and oxygen. She obtained the following results: The total mass of the sample = 316.08 g Mass of potassium = 78.20 g Mass of manganese = 109.88 g Determine the percentage composition of the compound 3. If at S.T.P 4.48 L of NH3(g) is allowed to react with 9.03 x 1022 molecules of O₂(g), please answer the questions for the following reaction: 4NH3(g) + 5O₂(g) 6H₂O(g) + 4NO(g) a. What is the limiting reactant? Please show all your work. b. What mass of nitrogen monoxide can be expected? c. If 3.00 g of nitrogen monoxide recovered, what would the percentage yield be? d. What reactant is in excess? Following the reaction, what is the remaining mass of the excess reactant?
Transcribed Image Text:2. A chemist analyzed a sample of a compound that was known to contain potassium, manganese, and oxygen. She obtained the following results: The total mass of the sample = 316.08 g Mass of potassium = 78.20 g Mass of manganese = 109.88 g Determine the percentage composition of the compound 3. If at S.T.P 4.48 L of NH3(g) is allowed to react with 9.03 x 1022 molecules of O₂(g), please answer the questions for the following reaction: 4NH3(g) + 5O₂(g) 6H₂O(g) + 4NO(g) a. What is the limiting reactant? Please show all your work. b. What mass of nitrogen monoxide can be expected? c. If 3.00 g of nitrogen monoxide recovered, what would the percentage yield be? d. What reactant is in excess? Following the reaction, what is the remaining mass of the excess reactant?
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