Question

How many moles are in 7.36 x 1025 molecules of H2O?

Answer 1

There are 122.1982401 moles of H2O in
`7.36*10^(25)` molecules of H2O

Step-by-step explanation:

We know,

`6.023*10^(23)` molecules of H2O contains 1 mole H2O

1 molecules of H2O contains
`(1)/(6.023*10^(23))` mole H2O

∴
`7.36*10^(25)` molecules of H2O contains
`(1)/(6.023*10^(23))*(7.36*10^(25))` moles of H2O

= 122.1982401 moles of H2O

∴ There are 122.1982401 moles of H2O in
`7.36*10^(25)` molecules of H2O