M(H2) Mr(H2)=2 г/моль m(H2O)=?

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вопрос

To find the molar mass of water (H2O), we first need to find the molar mass of hydrogen (H) and oxygen (O) separately.

The molar mass of hydrogen (H) is 1 g/mol and there are 2 atoms of hydrogen in water (H2O), so the total molar mass of hydrogen in water is
1 g/mol * 2 = 2 g/mol

The molar mass of oxygen (O) is 16 g/mol.

Adding the molar masses of hydrogen and oxygen gives us the molar mass of water
2 g/mol (H) + 16 g/mol (O) = 18 g/mol

Therefore, the molar mass of water (H2O) is 18 g/mol.