In the laboratory, 41.4 mL of hydrogen gas was collected at 22.0 oC and had a pressure of 748 torr. This hydrogen gas was collected from the reaction of hydrochloric acid on magnesium metal according to the balanced equation below. Calculate the mass of magnesium used.

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)