What is the mass in grams of one Mole of water?
To determine the mass of one mole of water, we need to know the molar mass of water (H2O). Water consists of two hydrogen atoms (H) and one oxygen atom (O).
First, we need to find the atomic masses of hydrogen and oxygen. These can be found on the periodic table:
- The atomic mass of hydrogen (H) is approximately 1.00784 g/mol.
- The atomic mass of oxygen (O) is approximately 15.999 g/mol.
Next, we calculate the molar mass of water (H2O) by adding the atomic masses of hydrogen and oxygen:
Molar mass of H2O = (2 * atomic mass of hydrogen) + atomic mass of oxygen
= 2 * 1.00784 g/mol + 15.999 g/mol
≈ 18.015 g/mol
Therefore, the mass of one mole of water (H2O) is approximately 18.015 grams.