Question

M(H2O)-?срочно!!!!!!!​

Answer 1

Відповідь:

M(H2O) = 2Ar(H) + Ar(O) = 2·1 + 16 = 18 г/моль.

Answer 2

M(H2O) refers to the molar mass of water (H2O). The molar mass is the mass of one mole of a substance and is calculated by summing the atomic masses of its constituent elements.

The molar mass of water (H2O) can be calculated as follows:

Molar mass of H = atomic mass of hydrogen = 1.008 g/mol Molar mass of O = atomic mass of oxygen = 16.00 g/mol

Since there are two hydrogen atoms and one oxygen atom in each water molecule, we can calculate the molar mass of water as:

M(H2O) = 2 * M(H) + M(O) = 2 * 1.008 g/mol + 16.00 g/mol = 2.016 g/mol + 16.00 g/mol = 18.016 g/mol

Therefore, the molar mass of water (H2O) is approximately 18.016 g/mol.