some chem help please and thank you much?

Question

How many liters of oxygen (O2) are needed to convert 100 liters of hydrogen (H2) to water (H2O)?



How many liters of hydrogen chloride (HCl) may be produced from 100 liters of H2?



How many cubic feet of oxygen (O2) are needed to convert 100 cubic feet (100cf) of carbon monoxide (CO) to carbon dioxide (CO2)?



How many liters of oxygen (O2) must react with sulfur dioxide (SO2) to produce 50 liters of sulfur trioxide (SO3)?



How many liters of hydrogen (N2) are needed to produce 100 liters of ammonia (NH3) by direct combination with nitrogen?



How many milliliters of carbon dioxide (CO2) can be formed when carbon (C) is burned in 1 liter of oxygen (O2)?



If 10 liters of hydrogen (H2) weigh 1.0g, and 10 liters of oxygen (O2) weigh 16g, how much would 10 liters of water vapor (H2O) weigh?



If 20 liters of carbon monoxide(CO) weigh 28g, and 20 liters

If 50 liters of nitrogen (N2) weigh 56g and and 50 liters of hydrogen (H2) weigh 4.0g,

Answer 1

At STP, all gases have approximately the same molar volume (22.4). You don't need it to compute anything, just calculate the relative amounts.

1. 50 liters
2. 200 liters (the question should specify HCl gas)
3. 50 cf
4. 25 liters
5. 150 liters (the question says N2...s/b H2)
6. 1000 ml
7. 17g

The last two are incomplete.

Answer 2

You need to use the fact that 1 mole of any gas at STP takes up 22.4 L of space. Use this conversion to convert from L to moles and it should make these problems easier.