How many moles are present in 50 g of CaCO? (Relative formula mass = 100)
Answer and explanation
Correct answer: C. 0.5 mol
- Step 1: Number of moles .
- Step 2: mol.
Answer
0.5 mol.
Why not the others: 5000 mol: it multiplies mass by instead of dividing. 2 mol: it divides by the mass. 1 mol: it doubles the correct value.
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