How many moles are present in 174 g of Mg(OH)? (Relative formula mass = 58)
Answer and explanation
Correct answer: B. 3 mol
- Step 1: Number of moles .
- Step 2: mol.
Answer
3 mol.
Why not the others: 10092 mol: it multiplies mass by instead of dividing. 0.333 mol: it divides by the mass. 6 mol: it doubles the correct value.
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