What is the mass of 2 mol of CaCO₃? (Relative atomic masses: Ca = 40, C = 12, O = 16.)
Answer and explanation
Correct answer: C. g
- Step 1: .
- Step 2: g.
Answer
g.
Why not the others: g: The moles were divided by the molar mass. g: Molar mass and moles were added. g: The mass of one mole was given.
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