Calculate Keq for the following (equilibrium concentrations given below substances)
a) 2 O3 (g) ↔ 3 O2 (g) + heat
[6.0 x 10-1] [0.21]
b) 2 CO2 (g) + heat ↔ 2 CO (g) + O2 (g)
[0.103] [0.024] [1.18 x 10-2]
c) NO2 (g) + O2 (g) + heat ↔ NO (g) + O3 (g)
[0.072] [0.083] 6.73 x 10-2] [6.73 x 10-2]
2. For all three of the equilibria in problem #1 predict (1) how Keq is affected by an increase in temperature, (2) predict how the equilibrium will shift when pressure is decreased, (3) predict how the equilibrium will shift when the concentration of the underlined substance is increased, and (4) predict how the equilibrium will shift when the temperature is decreased.
Next set 4.5
How many grams of CO2 would be formed from 30 grams of C4H10 in the following reaction?
Be sure to balance the reaction before proceeding.
C4H10 + O2 → CO2 + H2O
4. How many moles of Ca3(PO4)2 would be formed from 40 grams of Ca in the following equation? Be sure to balance the reaction before proceeding.
Ca + H3PO4 → Ca3(PO4)2 + H2
6. A gas sample has an original volume of 450 ml when collected at 730 mm and 25oC. If a change is made in the gas temperature which causes the volume of the gas sample to become 620 ml at 1.00 atm, what is the new temperature?
7. A sample of CO2 gas which weighs 1.25 grams has a volume of 1.15 liters when collected at 35oC. What would be the pressure of the gas sample?© BrainMass Inc. brainmass.com October 25, 2018, 12:10 am ad1c9bdddf
The solution comprised of chemical equilibrium.
equilibrium constant Kp and change of chemical equilibrium
A 6.1589 gm sample of ammonium hydrogen sulfide is placed in a 4.00L vessel at 24 degrees Celsius. After equilibrium the total pressure inside is 0.709 atm. Some solid ammonium hydrogen sulfide remains.
What is the Kp for the reaction?
What percentage of the solid has decomposed?
If the volume of the vessel were doubled at constant temperature, what would happen to the solid in the vessel?
We just started kinetics in my class and I am confused.View Full Posting Details