How many moles are present in 39.875 g of CuSO? (Relative formula mass = 159.5)
Answer and explanation
Correct answer: C. 0.25 mol
- Step 1: Number of moles .
- Step 2: mol.
Answer
0.25 mol.
Why not the others: 6360.062 mol: it multiplies mass by instead of dividing. 4 mol: it divides by the mass. 0.5 mol: it doubles the correct value.
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