Molar Mass of C2H5OH

How to work out the molar mass of C2H5OH

1. Count the atoms of each element in C2H5OH: 2 C, 6 H and 1 O.
2. Multiply each count by the element's atomic weight: 2 × 12.011 = 24.022; 6 × 1.008 = 6.048; 1 × 15.999 = 15.999.
3. Add the results: 24.022 + 6.048 + 15.999 = 46.069 g/mol.

Frequently asked questions

What is the molar mass of C2H5OH?

The molar mass of ethanol (C2H5OH) is 46.069 g/mol, so one mole of it weighs 46.069 grams.

How many moles are in 100 grams of C2H5OH?

100 g ÷ 46.069 g/mol = 2.171 mol.

Which element makes up most of the mass of C2H5OH?

C, at 52.14% of the mass.