Multiple Choice
An ore sample is found to contain 10.500000 g of cobalt and 87.3 g waste rock (gangue) .What is the percent by mass of cobalt in the ore?
A) 10.7 %
B) 12.114 %
C) 0.107 %
D) 0.12228 %
E) 1.2879 %
Correct Answer:

Verified
Correct Answer:
Verified
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