How many liters of methane gas (CH4) need to be combusted to produce 8.5 liters of water vapor, if all measurements are taken at the same temperature and pressure? Show all of the work used to solve this problem.

CH4 (g) + 2 O2 (g) CO2 (g) + 2 H2O (g)

Question

How many liters of methane gas (CH4) need to be combusted to produce 8.5 liters of water vapor, if all measurements are taken at the same temperature and pressure? Show all of the work used to solve this problem. 

CH4 (g) + 2 O2 (g)  CO2 (g) + 2 H2O (g)

anonymous · Answer

Here are some more that i need help with please? 
1) How many liters of fluorine gas, at standard temperature and pressure, will react with 23.5 grams of potassium metal? Show all of the work used to solve this problem. 
2 K + F2  2 KF

2)Which of the following gases will have the highest velocity at a given temperature?

 Ne

 O2

 He

 Cl2

3)How many liters of oxygen gas can be produced if 28.7 grams of water decomposes at 294 Kelvin and 0.986 atmospheres? Show all of the work used to solve this problem. 

2 H2O (l)  2 H2 (g) + O2 (g)


4) Under certain conditions argon (Ar) gas diffuses at a rate of 3.2 centimeters per second. Under the same conditions, an unknown gas diffuses at a rate of 4.5 centimeters per second. What is the approximate molar mass of the unknown gas?

 10 g/mol

 20 g/mol

 28 g/mol

 56 g/mol

5) How many grams of water vapor (H2O) are in a 10.2 liter sample at 0.98 atmospheres and 26°C? Show all work used to solve this problem.


6) What is the volume of 2.1 moles of chlorine gas (Cl2) at standard temperature and pressure (STP)?


7) What is true at STP?

 Temperature is 273.15 Kelvin.

 One mole of gas occupies one liter of volume.

 Pressure is 101 atmosphere.

 Volume is 4.2 liters.


8) If 2.0 liters of oxygen gas react with excess carbon monoxide at STP, how many liters of carbon dioxide can be produced under the same conditions? 

2 CO (g) + O2 (g)  2 CO2 (g)