In 1928,29.3 g of a new element was isolated from 660 kg of the ore molybdenite.The percent by mass of this element in the ore was:
A) 44 %
B) 6.6 %
C) 29.3 %
D) 0.0044 %
E) 19.3 %
Correct Answer:
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A)2.7514 mg
B)27.514 mg
C)275.14
A)
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