2.5 moles of water contains how many molecules??

1 Answer

Answer:

#1.5 xx 10^24# molecules.

Explanation:

You can calculate the number of molecules from moles by using Avogadro's constant, #6.02 xx 10^23# #"molecules/mol"#.

For every #1# mol, there are #6.02 xx 10^23# molecules.

Simply multiply

#"2.5 mol" xx (6.02 xx 10^23)/"1 mol" = 1.5 xx 10^24# #"molecules"#