Question

H2SO4+2NaOH->2H2O+Na2SO4

1.) How many grams of H2SO4 are needed to produce 135L of water?

2.) How many molecules of water are produced when 12g of sodium sulfate are created?

Answer 1

how many moles of H2O in 135L (at 18g/mole)?
half that many moles of H2SO4

Now use Avogadro's Number to find # molecules.

Answer 2

So is this right?

1.) 18g H2SO4. If so why wouldn’t we include Sulfur?

2.) 108x6.02^23= 108molecules H2O

Thanks for the help.