A few Chemistry questions?

0 ⤊

A few Chemistry questions?

Hydrogen gas was produced by reacting magnesium metal with hydrochloric acid, 45.0 milileters of gas was produced from the reaction of .0250 grams of magnesium. The gas was collected at a temperature of 25 degrees celsius and the room pressure was 750 mm Hg (Vapor pressure of water @ 25 degree celsius= 21.3 mm Hg)

What is the pressure of hydrogen?

What was the volume of hyrdogen gas?
How many moles of magnesium were used to produce the hydrogen gas?

What is the volume of the hydrogen gas per one mole of magnesium at STP?

Thanks

2007-04-30 15:48:49 · 1 answers · asked by blinkingtrees 2 in Science & Mathematics ➔ Chemistry

1 answers

Mg + 2HCl -> MgCl2 + H2

Use the gas eqn. PV = nRT

2007-04-30 21:09:39 · answer #1 · answered by ag_iitkgp 7 · 0⤊ 0⤋