# Determine the molecular mass and its uncertainty for C3H7OH. Use correct sit figs.

## Question:

Determine the molecular mass for C3H7OH. Use correct sit figs.

## Molar mass

Molar mass is defined as the sum of molar masses of all the atoms in a molecule in 1 mole or in Avogadro's number of particles or in other words {eq}6.022 \times 10^{23} {/eq}. Its SI unit is gram/mol.

We have the molecular formula:

{eq}C_3H_7OH {/eq}

Now,

{eq}\\ (3 \times 12 )+ (7 \times 1)+ 16 + 1 \\ =36 + 7+ 16 + 1 \\ =60 gram/mol {/eq}