Question

Find the number of moles and molecules present 9 og of water

Answer 1

Water(H2O) has a molecuar mass of 18, this means it weights 18 g per mole.

A mole is 6.0221415*1023molecules (Avogadro's number).

If you have 1 g of water, you therefore have 1/18 of a mole, or 3.34*1022 molecules.

Answer 2

Water(H2O) has a molecuar mass of 18, this means it weights 18 g per mole. A mole is 6.0221415*1023molecules (Avogadro's number). If you have 1 g of water, you therefore have 1/18 of a mole, or 3.34*1022 molecules.....

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