How many moles of water are in a 710 gram bottle of water?

1 Answer
Dec 25, 2015

There are approx. 39.4 moles of water in a 710 g mass.

Explanation:

No. of moles, n, is simply mass divided by molar mass, which will give a quantity in moles:

i.e. (710*cancel(g))/(18*cancel(g)*mol^-1) = ?? mol

Dimensionally this operation has given an answer in moles (as required), because 1/(x^-1) = 1/(1/x) = x. Capisce?

What is the volume of this mass of water? Why?