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

1 Answer
Dec 25, 2015

Answer:

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?