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When an aqueous solution of an organic compound is shaken with an immiscible organic solvent, such as diethyl ether.
Write reactions for each of the following and explain how the equilibrium reaction for the dissociation of lead(II) carbonate is affected.
Why must the stopper at the top of the separatory funnel be removed before liquid can be withdrawn through the stopcock?
In the lung (where there is a high concentration of O2), which direction is the equilibrium favoured?
The Kc for the following reaction; CO(g) + 2 H2(g) ? CH4(g) + H2O(g) at 1200oK is 3.93. Given the concentrations [CO] = 0.0450 M, [H2] = 0.132 M
Consider the equilibrium of AgCl(s) in water. What is the effect of adding KCl? The KCl has no effect.
Heating a reaction mixture increases the rate of a certain reaction but decreases the yield of product from the reaction. Why or why not?
What is the net ionic equation for the precipitation of Lead(II) Chromate from an aqueous solution of ion.
The reaction of ammonia with oxygen (from the air) to form nitrogen monoxide (NO, also known as nitric oxide ) is the first stage in the industrial conversion.
For the following reaction HSO4-(aq) + H2O H3O+(aq) + SO42- How will the equilibrium change when Na2SO4 is added?
Write an appropriate equilibrium expression for the reaction. What would the units of the equilibrium constant K be if the concentrations.
In which of the following substances would you expect to find hydrogen bonding? Explain your reason.
Bromine water is initially yellow/brown but changes to yellow when sodium hydroxide is added.
Calculate the half-life (t1/2) for glucose under the specified conditions.
When the concentration of X in a solution is 1.02 M, the half-life (t1/2) is 160 seconds.
The reaction follows Michaelis-Menton kinetics. The following rate data were determined for a solution in which the enzyme concentration is 10.0 uM:
Animal rights groups often target the LD50 standard as an example of callous indifference to animal welfare.
Ammonia gas at 223 deg C and 90. atm flows into a reactor at a rate of 500. L/min. Carbon dioxide at 223 deg C and 47 atm flows into the reactor.
Kc for the reaction below at 25°C is 4.8 x 10-6. Calculate the equilibrium concentration (mol/L) of Cl2(g) if the initial concentration of ICl(g) is 1.33 mol/L.
The relationship between the rate constants for the forward and reverse reactions and the equilibrium constant for a process is K = ____________.
Acetaldehyde can undergo catalytic decomposition according to the mechanism below: the overall chemical equation.
Calculate the volume of nitrogen gas that the reaction will release when it is complete, i.e. after infinite time.
If 4.83 ml of an unknown gas effuses through a hole in a plate in the same time it takes 9.23 ml of Argon to effuse through the same whole.
The activation energy of a certain reaction is 76.7 kj/mol. How many times faster will the reaction occur at 62 degrees C than at 5 degrees C?
The reaction 2NO(g) + Cl2 produces 2NOCl(g) was studied at -10 degrees C. The following results were obtained Rate = Delta[Cl2] over Delta t.