Asked by Lisa

How do I determine the number of moles for the substance: 3.5 x 10^23 molecules H2O?
Answered by DrBob222
1 mol of anything has 6.02 x 10^23 molecules of (in this case) H2O. This must be close to a 0.5 mol but you need to do the exact arithmetic.
Answered by Lisa
How do I determine the number of grams for the following Substance? 7.8 mol ZnSo4.
Answered by DrBob222
grams = mols x molar mass
Answered by Anymous
How do I determine the number of grams for the following Substance? 7.8 mol ZnSo4
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