Question

How many moles of water (H2O) are present in a beaker containing 45.9 g H2O?

Answer 1

About `2.5*mol`...

Explanation:

We take the quotient…`"mass of water"/"molar mass of water"`..

And here...`(45.9*cancelg)/(18.01*cancelg*mol^-1)~=2.5*1/(1/(mol))~=2.5*mol`