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How are moles (mols) calculated?
mg/MW
g/MW
(mg x valence) / MW
Q1 = Q2 x C2 / C1
The correct answer is: g/MW
The formula for calculating moles (mols) is mass (g) / molar mass (MW). Option A, mg/MW, is incorrect because the units do not cancel out to give moles. Option C, (mg x valence) / MW, is incorrect because it only applies to ionic compounds with a defined valence. Option D, Q1 = Q2 x C2 / C1, is incorrect because it is a formula for calculating concentration, not moles.