1-6-Percent
Chapter
West Virginia University
Dr. Robert Belford




Question 1
What is the mass percent water in a solution made by mixing 41.48 g salt with 972 g water?
(A)  0.95907%
(B)  95.91%
(C)  95.9%
(D)  4.09%
 
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Question 2
What is the mass percent salt in a solution made by mixing 41.48 g salt with 972 g water?
(A)  .040928%
(B)  4.0928%
(C)  4.093%
(D)  4.09%
 
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Question 3
An ore sample is 1.67% gold. How much pure gold is in 23.4 g of the ore?
(A)  0.39078g
(B)  0.3908g
(C)  0.391g
(D)  0.398g
 
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Question 4
Modern copper deposits tend to be low grade sulfide ores. What quantity of 0.874% copper ore is required to produce 1.00 lb of copper?
(A)  114.4 lb
(B)  97.4 lb
(C)  23.4 lb
(D)  114 lb
 

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Question 5
What mass of sulfur is released upon combustion of 50.0 lbs of low grade coal containing 12.4% sulfur?
(A)  6.2 lb
(B)  6.20 lb
(C)  3.4lb
(D)  3.40 lb
 
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