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
Q45: How many molecules are there in 2.10
Q46: The total number of oxygen atoms in
Q47: What is the percentage by mass of
Q48: Which one of the following contains 4.21
Q49: In 0.300 mol of dimethylhydrazine,(CH3)2N2H2,there are
A)1.81 ×
Q51: A sample of 496 g of white
Q52: How many atoms are present in 495
Q53: Styrene's empirical formula is CH.When it is
Q54: Which is a reasonable mass corresponding to
Q55: Which of the following compounds has the
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents