How many moles are in 36 g of water (molar mass 18 g/mol)?
Answer and explanation
Correct answer: D. 2 mol
- Step 1: n = m/M. Step 2. 36/18 = 2. Answer: 2 mol. Why not the others: 0.5 inverts, 648 multiplies and 18 is the molar mass.
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