how do i find the molecular mass of 2-propanol?

Question

i know that the formula is C^3H^7OH (those are subscripts, not superscripts) and that the molar mass is approx. 60.11 g/mol. what is the formula for finding the molecular mass?

thank you in advance.

Answer 1

Look up the molecular weights of each atom and add them all up:

3*C + H*7 + O*1 + H*1 =

3*12 + 7 + 16 + 1 = 60 gram/mole

Answer 2

You just add up the atomic masses of each substituent and multiply each by the subscript. You can find atomic masses on the periodic table.

So for 2-propanol, that would be: (12.01)3 + (1.00)7 + (15.99)1 = your answer.

Answer 3

hope this helps