# How many molecules are present in a #0.05*cm^3# volume of LIQUID water under standard conditions?

##### 1 Answer

Sep 10, 2017

#### Answer:

Approx.

#### Explanation:

We approach all these problems dimensionally. We want the answer as a dimensionless number, and our calculation should give us a dimensionless number if we do the correct product/quotient....

And number of moles

And so we take ....................

And we multiply this molar quantity by

And note that this approach gives us a dimensionless number as required.