1. What volume (in Liters) of oxygen must react to form 4.0L of carbon dioxide a

Question

1. What volume (in Liters) of oxygen must react to form 4.0L of carbon dioxide according to the following balanced equation:

2CO(g) + O2(g) --> 2CO2(g)

Assume an excess of CO and that all are at the same temperature and pressure.

2. What volume (in Liters) of hydrogen must react to form 4.0L of ammonia according to the following balanced equation:

N2(g) + 3H2(g) --> 2NH3(g)

Assume an excess of N2 and that all are at the same temperature and pressure.

3. What volume (in ml) of carbon dioxide will form if 32.1 ml of O2 are reacted according to the following balanced equation:

2CO(g) + O2(g)--> 2CO2(g)   

Assume an excess of CO and that all are at the same temperature and pressure

4. Lithium hydride reacts with water as follows.

LiH(s) + H2O(l) --> LiOH(aq) + H2(g)

During World War II, U.S. pilots carried LiH tablets.In the event of a crash landing at sea, the LiH would react with the seawater and fill their life belts and lifeboats with hydrogen gas. How many grams of LiH are needed to fill a 3.4 L life belt with hydrogen gas at 0.93 atm and 24.7C?

5. Sodium metal reacts wth water according to the following equation:

2Na(s) + 2H2O(l) --> 2NaOH(aq) + H2(g)

How many Liters of hydrogen gas will be produced if 38.1 g of solid sodium are completely reacted at 27.6C and 1.103 atm.

6. Sodium metal reacts with water according to the following equation:

2Na(s) + 2H2O(l) --> 2NaOH(aq) + H2(g)

How many Liters of hydrogen gas will be produced if 61 g of solid sodium ar completely reacted at 21C and 798 torr.

Explanation / Answer

x/22.44/22.4

balancing the mole:-

2* x/22.4 = 2* 4/22.4

x=2lit

Vol. of Hydrogen=3lit

Vol. of CO2=32.1ml

Wt. =P*V*mol.Wt/R*T

=0.906gm

Vol.=n*R*T/P

=37.064lit

vol. of Hydrogen produced=Vol. of Sodium reacted

vol. of Hydrogen produced=37.064lit

PV=nRT

V=n*R*T/P

=60.968lit

vol. of Hydrogen produced=Vol. of Sodium reacted

       vol. of Hydrogen produce=60.968lit

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