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A total of 5 moles of gas react together to produce 4 moles of gas. They are at equilibrium and the process is exothermic. It may be given as follows:
2 A (g) + 3 B (g) <- -> 2 C (g) + 2 D (g)
In what direction, right or left, will the equilibrium shift given the following circumstances? Justify what you think will happen.
1. The container is expanded at a constant temperature.
2. Some of the mass of one of the products is removed.
3. The temperature of the system is raised.
4. One of the products (e.i. steam) is absorbed by a solid that was added to the system.
If a mixture of 35.8 g of CH4 and 75.5 g of S reacts, how many grams of H2S are produced? CH4(g)+4S(g)-->CS2(g)+2H2S(g).
The equilibrium vapor pressures of water at 25*C and 50*C are 3.16 kPa and 12.51 kPa, respectively. Consider a 1.00 L sample of air at 50*C, with 45% relative humidity, trapped in a rigid cylinder. Suddenly the temperature of the gas is reduced to..
An excited hydrogen atom emits a photon with a frequency of 1.141 x 10^14 Hz to reach the n = 4 state. From what state did the electron
Beakers 1 through 4 contain 2.3, 1.91, 5.985, and 0.52 g of dry potassium nitrate respectively. How many moles of potassium nitrate were recovered after the water evaporated
What would you expect to observe in terms of the angle of rotation if you were to double the concentration of a sample, but kept all other variables constant?
Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.50 M B(aq) with 0.50 M HCl(aq).
Consider another expandable balloon is filled with nitrogen gas. The density of the gas is 1.24 g/L and the outside pressure is 1.05 atm. What is the temperature of the gas?
calculate the concentration of calcium ion (in mg/L -1) in the water (25C). What assumptions are made in carrying out the calculation?
The concentration which remains after 20 minutes is 80 mg/L. Determine the reaction order and the rate constant (with appropriate units).
the mineral greenockite is a yellow sulfide of cadmium that is 78.0% cadmium and 22.o% sulfer. determine the emipirical formula of greenockite.
what is the literature ksp value for potassium hydrogen tartrate at different
nitrogen dioxide no2 cannot be obtained in a pure form in the gas phase because it exists as a mixture of no2 and n2o4.
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