Formula for Molar Mass. The molar mass of a substance can be calculated using the formula: Molar Mass=Mass of the substance (g)/Number of moles (mol) Calculations of Molar Mass.

For NaCl, the molar mass is 58.44 g/mol Now we can use the rearranged equation Mass (g) = No. Moles (mol) x Molar Mass (g/mol) = 1 x 58.44 = 58.44 g So, to make 2 liters of a 0.5 M solution of NaCl, ...

The molar mass is also used to calculate the percent composition of an element. ... Formula for Molar Mass. The molar mass of a substance can be calculated using the formula: ...

number of moles = mass/formula mass. The molar close molar The amount of something per mole. For example, 'molar enthalpy change' is the enthalpy change per mole.

You can work out the molecular formula from the empirical formula, if you know the relative mass formula (M r) of the compound. Add up the atomic masses of the atoms in the empirical formula. The ...