Question

Question #72cbb

Answer 1

From the reaction equation it follows that every mole of `O_2` will yield two moles of `H_2O`.

Explanation:

Every mole of a gas at STP has a volume of `22.4L`

So the `44.8L` represents 2 moles, that will produce 4 moles of `H_2O`.

Molar mass of `H_2O` is `~~2xx1+1xx16=18g`

So we get `4"mol"xx18g=72g` of water.