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at mass of AgK

at mass of AgK

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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This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium argentocyanide, molar mass = 199.0 g/mol) which is mined from the carth. 2AgK(CN)2 (aq) + Zn(s) - 2 Ag(s) + Zn(CN), (ag) + 2KCN(ag) 2004 A handtul of these silver coins contains 221.7 g of Ag. What mass of AgK(CN)2 must be extracted from a mine in order to produce the coins? Answer: g AgK(CN)2 Question 19 silver from the potassium argentocyanide ore. This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium argentocyanide), which is mined from the carth. Zinc is a reactant in the equation, and it is needed in order to extrac 2AgK(CN), (ag) + Zn(a) -2 Ag(s) + Za(CN)2(ag) + 2KCN(aq) How many atoms of pure zinc (Zn) are needed in the production process to create a pure silver coin of mass 25.8.0 grams? Answer Zn atoms (Use 3 significant figures for answer. Format scientific notation using "e": for example, 5.84x1014 is entered as 5.84e16) 17
Transcribed Image Text:This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium argentocyanide, molar mass = 199.0 g/mol) which is mined from the carth. 2AgK(CN)2 (aq) + Zn(s) - 2 Ag(s) + Zn(CN), (ag) + 2KCN(ag) 2004 A handtul of these silver coins contains 221.7 g of Ag. What mass of AgK(CN)2 must be extracted from a mine in order to produce the coins? Answer: g AgK(CN)2 Question 19 silver from the potassium argentocyanide ore. This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium argentocyanide), which is mined from the carth. Zinc is a reactant in the equation, and it is needed in order to extrac 2AgK(CN), (ag) + Zn(a) -2 Ag(s) + Za(CN)2(ag) + 2KCN(aq) How many atoms of pure zinc (Zn) are needed in the production process to create a pure silver coin of mass 25.8.0 grams? Answer Zn atoms (Use 3 significant figures for answer. Format scientific notation using "e": for example, 5.84x1014 is entered as 5.84e16) 17
This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium argentocyanide, molar mass 199.0 g/mol) which is mined from the earth. 2AgK(CN), (aq)+ Zn(s) → 2 Ag(a)+ Zn(CN): (ag) + 2KCN(aq) LTRUS 2004 Abicdomoh A handful of these silver coins contains 221.7 g of Ag. What mass of AgK(CN)2 must be extracted from a mine in order to produce the coins? Answer: g AgK(CN)2 Question 19 This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium argentocyanide), which is mined from the earth. Zinc is a reactant in the equation, and it is needed in order extract the silver from the potassium argentocyanide om 2AGK(CN)2(aq) + Zn(s) 2 Ag(s) + Zn(CN)2(aq) + 2KCN(aq) 2004 How many atoms of pure zinc (Zn) are necded in the production process to create a pure silver coin of mass 25.8.0 grams? Answer Zn atoms (Use 3 significant figures for answer. Format scientific notation using "e": for example, 5.84x10 is entered as 5.84e16)
Transcribed Image Text:This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium argentocyanide, molar mass 199.0 g/mol) which is mined from the earth. 2AgK(CN), (aq)+ Zn(s) → 2 Ag(a)+ Zn(CN): (ag) + 2KCN(aq) LTRUS 2004 Abicdomoh A handful of these silver coins contains 221.7 g of Ag. What mass of AgK(CN)2 must be extracted from a mine in order to produce the coins? Answer: g AgK(CN)2 Question 19 This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium argentocyanide), which is mined from the earth. Zinc is a reactant in the equation, and it is needed in order extract the silver from the potassium argentocyanide om 2AGK(CN)2(aq) + Zn(s) 2 Ag(s) + Zn(CN)2(aq) + 2KCN(aq) 2004 How many atoms of pure zinc (Zn) are necded in the production process to create a pure silver coin of mass 25.8.0 grams? Answer Zn atoms (Use 3 significant figures for answer. Format scientific notation using "e": for example, 5.84x10 is entered as 5.84e16)
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