Chemistry Homework Help

### Browse Homework Solutions

89 solutions

Gas Stoichiometry

#### Q. How many liters of oxygen are needed to exactly react with 21.8 g of methane at STP? CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(l) a) 15.3 L b) 61.1 L c) 66.7 L d) 30.6 L

Solved • Apr 23, 2020

Gas Stoichiometry

#### Q. How many liters of hydrogen gas are needed to produce 100.0 grams of water at 25.0 °C and 1.00 atm pressure according to the chemical equation shown below? 2H2(g) + O2(g) → 2 H2O(l) a) 136 L b) 67.9 L c) 407 L d) 203 L

Solved • Apr 23, 2020

Gas Stoichiometry

#### Q. Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C2H2, and oxygen, O2 to produce the following combustion reaction: 2C2H2(g) + 5O(g) → 4CO2(g) + 2H2O(g) Imagine that you have a 6.00 L gas tank and a 3.00 L gas tank. You need to fill with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 155 atm, to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.

Solved • Apr 13, 2020

Gas Stoichiometry

#### Q. Chlorine gas reacts with fluorine gas to form chlorine trifluoride. Cl2(g)+3F2(g)→2ClF3(g) A 1.90 L reaction vessel, initially at 298 K, contains chlorine gas at a partial pressure of 337 mmHg and fluorine gas at a partial pressure of 885 mmHg . Identify the limiting reactant and determine the theoretical yield of ClF3 in grams. Express your answer with the appropriate units.

Solved • Apr 16, 2020

Gas Stoichiometry

#### Q. Consider the following gas phase reaction: 2NO(g) + O2(g) → 2NO2(g) 400. mL of NO at STP is reacted with 500. mL of O2 at STP. Calculate the volume of the reaction mixture at STP after the reaction goes to completion. A. 700 mL B. 800 mL C. 900 mL D. 1300 mL E. 100 mL

Solved • Apr 3, 2020

Gas Stoichiometry

#### Q. Aluminum reacts with chlorine gas to form aluminum chloride. 2Al(s)+3Cl2(g)→2AlCl3(s) What minimum volume of chlorine gas (at 298 K and 225 mmHg) is required to completely react with 8.90 g of aluminum?

Solved • Apr 1, 2020

Gas Stoichiometry

#### Q. At STP, what volume of hydrogen will be produced by the reaction of .0379 grams of K with HCL? Include a balanced equation.

Solved • Apr 1, 2020