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Please tell me the steps on how to do so. It would be most appreciated.
Determine the mass of 1.2x10^29 molecules of water.?
回答 (2)
2018-01-14 8:38 am
✔ 最佳答案
Avogadro constant is the number of molecules in one mole of a substance"6.022e23 molecules/mole
you have 1.2e29 molecules
molar mass of water is 16+2 = 18 g/mole
1.2e29 molecules / 6.022e23 molecules/mole = 199000 moles
199000 moles x 18 g/mole = 3.58e6 g or 3.58e3 kg or 3.58 Mg
2018-01-14 8:35 am
1.2 x 10^29 = 199.3 kmol;
so the mass is (18.015 kg)(199.3) = 3590 kg.
so the mass is (18.015 kg)(199.3) = 3590 kg.
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