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A small amount do aqueous ammonia is added to a Cd^2+ solution and a precipitate forms. Write the equation for this reaction.
Suppose that ammonia decomposes at 600 Kelvin to establish equilibrium NH3 1/2N2(g)+3/2H2 for which K=0.395. You have a box volume of 1.00 liter into which you inject 2.65 grams of NH3 at 600K. What will be the final concentrations of NH3,N2, and..
Calculate the entropy change for 0.5 mol of an ideal gas confined in 2.0L, which expands when the stopcock is opened, and the gas comes in contact
How many valence electrons are in a Kr atom?
Assign oxidation numbers to all the elements in each of the following compounds or polyatomic ions: a)N2O b)LiOH c)SbO2^- d)IO4^-
Determine the pH of a solution containing A) neglecting activities. B) including activities The solution contains BOTH chemicals
How many grams of dry NH4Cl need to be added to 1.60 L of a 0.700 it M solution of ammonia, NH_3, to prepare a buffer solution that has a rm pH of 8.62? K_b for ammonia is 1.8 * 10^{-5}
Calculate the degree of dissociation by A) assuming ideal behavior and B) using a mean activity coefficient y=0.93. The concentration of the acid is 0.010 M.
A 28.0g sample of an unknown metal at 99.0c was placed in a constant pressure calorimeter containing 85.0g of water at 24.0c. the final temperature of the system was found to be 28.4c. calculate the specific heat of the metal (the heat capacity of..
For a certain reaction delta H = -76.0 kJ and delta S= -234 J/K, if n=3 calculate E(standard) for the reaction at 25 degrees celsius
A 0.15 M solution of Chloroacetic acid has a pH of 1.86. What is the Value of Ka for this acid
what purpose does sodium carbonate serve during the extraction of caffeine from tea leaves?
The vapor pressure of dichloromethane at 0C is 134mmHg. The normal boiling point of dichloromethane is 40C. Calculate its molar heat of vaporization.
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