Question
Determine the formula weight (molecular mass) of each of the following substances: (a) bromine, Br 2; (b) hydrogen peroxide, H2O2; (c) saccharin, C7H 5NSO3; (d) potassium chromate, K2CrO4.
Step 1
The atomic masses are approximately: Br = 79.904 g/mol, H = 1.007 g/mol, O = 15.999 g/mol, C = 12.011 g/mol, N = 14.007 g/mol, S = 32.06 g/mol, K = 39.098 g/mol, and Cr = 51.996 g/mol. Show more…
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