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1) A lab theoretically should produce 2.3g of precipitated calcium carbonate. A group of students runs the lab and collects 2.1g. What is the percent yield that this lab group obtained? 2) How many grams of Ag,S will theoretically be produced when 3.94 g of AgNO; and an excess of Na,S are reacted together? Na,S(aq) + 2 AgNO;(aq) → Ag,S(s) + 2 NaNO3(aq) 3) 15.3 grams of Lithium is dropped into a solution containing excess copper II phosphate. When the reaction is completed, 62.5 grams of copper is collected in the lab. What is the percent yield? 6 Li (s) + 1 Cu3(PO4)2 (aq) à 2 L¡3PO4 (aq) + 3 Cu (s) 4) 2.3 grams of Aluminum is placed into a solution containing excess copper II chloride. When the reaction is completed, 6.25 grams of copper is collected in the lab. What is the percent yield? + 3 CuCl2 (aq) 2 Al à 2 AIC13 (aq) + 3 Cu (s) (s)

1) A lab theoretically should produce 2.3g of precipitated calcium carbonate. A group of students runs the lab and collects 2.1g. What is the percent yield that this lab group obtained? 2) How many grams of Ag,S will theoretically be produced when 3.94 g of AgNO; and an excess of Na,S are reacted together? Na,S(aq) + 2 AgNO;(aq) → Ag,S(s) + 2 NaNO3(aq) 3) 15.3 grams of Lithium is dropped into a solution containing excess copper II phosphate. When the reaction is completed, 62.5 grams of copper is collected in the lab. What is the percent yield? 6 Li (s) + 1 Cu3(PO4)2 (aq) à 2 L¡3PO4 (aq) + 3 Cu (s) 4) 2.3 grams of Aluminum is placed into a solution containing excess copper II chloride. When the reaction is completed, 6.25 grams of copper is collected in the lab. What is the percent yield? + 3 CuCl2 (aq) 2 Al à 2 AIC13 (aq) + 3 Cu (s) (s)

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter3: Equation, The Mole, And Chemical Formulas
Section: Chapter Questions
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1) A lab theoretically should produce 2.3g of precipitated calcium carbonate. A group of students runs the lab and collects 2.1g. What is the percent yield that this lab group obtained? 2) How many grams of Ag,S will theoretically be produced when 3.94 g of AgNO; and an excess of Na,S are reacted together? Na,S(aq) + 2 AgNO;(aq) → Ag,S(s) + 2 NaNO3(aq) 3) 15.3 grams of Lithium is dropped into a solution containing excess copper II phosphate. When the reaction is completed, 62.5 grams of copper is collected in the lab. What is the percent yield? 6 Li (s) + 1 Cu3(PO4)2 (aq) à 2 L¡3PO4 (aq) + 3 Cu (s) 4) 2.3 grams of Aluminum is placed into a solution containing excess copper II chloride. When the reaction is completed, 6.25 grams of copper is collected in the lab. What is the percent yield? + 3 CuCl2 (aq) 2 Al à 2 AIC13 (aq) + 3 Cu (s) (s)
Transcribed Image Text:1) A lab theoretically should produce 2.3g of precipitated calcium carbonate. A group of students runs the lab and collects 2.1g. What is the percent yield that this lab group obtained? 2) How many grams of Ag,S will theoretically be produced when 3.94 g of AgNO; and an excess of Na,S are reacted together? Na,S(aq) + 2 AgNO;(aq) → Ag,S(s) + 2 NaNO3(aq) 3) 15.3 grams of Lithium is dropped into a solution containing excess copper II phosphate. When the reaction is completed, 62.5 grams of copper is collected in the lab. What is the percent yield? 6 Li (s) + 1 Cu3(PO4)2 (aq) à 2 L¡3PO4 (aq) + 3 Cu (s) 4) 2.3 grams of Aluminum is placed into a solution containing excess copper II chloride. When the reaction is completed, 6.25 grams of copper is collected in the lab. What is the percent yield? + 3 CuCl2 (aq) 2 Al à 2 AIC13 (aq) + 3 Cu (s) (s)
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