Asked by Jenny

14. What is the number of moles in 42 g of NaCl?
A. 1.8 mol NaCl
B. 0.72 mol NaCl
C. 0.61 mol NaCl
D. 1.2 mol NaCl

I'm sorry, I have no idea what I'm doing here.
Answered by DrBob222
mols = grams/molar mass
Answered by 8=D
b. 0.72 mole naci
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