21.10 grams of magnesium react with excess sulfuric acid. How many liters of hydrogen are produced?
We have (almost!) a mole of magnesium atoms. So we generate, almost a mole of dihydrogen gas, approx
Given the equation (which you should be able to reproduce) there is a 1:1 equivalence of magnesium metal to dihydrogen gas.
Now it is a fact, that at
So volume of dihyfrogen (at