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(Atomic mae ued are C = 12. 0 g mol–1, O = 16. 0 g mol–1, H = 1. 01 g mol–1, Cu = 63. 5 g mol–1,)

1. How many mole are there in 5. 0 g of methanol (CH3OH)?
2. How many molecule of CuCO3 would weigh 9. 0 g?
3. How many mole would 3. 0 g of cyclohexane (C6H12) contain?
4. How much would 4. 00 mole of benzene weigh?
5. What i the ma of 1000 atom of calcium?

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