chemistry questions to study for test.?

Question

1:How many liters of oxygen (O2) are needed to convert 100 liters of hydrogen (H2) to water (H2O)?
2:How many liters of hydrogen chloride (HCl) may be produced from 100 liters of H2?
3:How many cubic feet of oxygen (O2) are needed to convert 100 cubic feet (100cf) of carbon monoxide (CO) to carbon dioxide (CO2)?
4:How many liters of oxygen (O2) must react with sulfur dioxide (SO2) to produce 50 liters of sulfur trioxide (SO3)?
5:How many liters of hydrogen (H2) are needed to produce 100 liters of ammonia (NH3) by direct combination with nitrogen?
6:How many milliliters of carbon dioxide (CO2) can be formed when carbon (C) is burned in 1 liter of oxygen (O2)?
7:If 10 liters of hydrogen (H2) weigh 1.0g, and 10 liters of oxygen (O2) weigh 16g, how much would 10 liters of water vaper weigh?
8:If 20 liters of carbon monoxide(CO) weigh 28g, and 20 liters of oxygen (O2) weigh 32g, how much would 20 liters of carbon dioxide weigh?

Answer 1

All these questions use the same principle; equal volumes of gas contain equal numbers of molecules. You also need to use balanced equations.

1) 2H2 + O2 = 2 H2O

So the volume of oxygen is half the volume of hydrogen (under the same conditions)

7) 10 L hydrogen will react with 5 L oxygen (I hope you worked that out by finishing (1)); so add up 1.0 g + 1/2 of 16.0 g

You should now be able to do the rest yourself. You won't learn anything by other people doing them for you.

Answer 2

i hated chemistry.

Answer 3

ok your email thing is blocked but I go to the same online school you do, and Im taking this class...email me if you want =]
Id write more but this is public haha
and I dont have the answers to this one or Id help lol