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A compound CN is a weak organic base; a 3.50 x 10-2 M solution has a pH = 11.3. Calculate the kb for CN. The reaction is CN+H2O-->CNH+ + OH-
Identify the types of intermolecular forces present in each of the following substances, and select the substance in each pair that has the higher boiling point.
suppose you have a calorimeter that contains 100.0 grams of water at an initial temperature of 25 c. a salt 2.19 g
The equilibrium constant for a reaction at 800K is 14.2. If the enthalpy of the reaction is 30 kj/mole, what would be the equilibruim constant
Ammonia is produced by the reaction of hydrogen and nitrogen N2(g)+3H2(g)--->2NH3(g). a) How many moles of H2 are needed to react with 1.0 mol of N2? b) How many moles of N2 reacted if 0.60 mol of NH3 is produced?
When the stopcock between the manifold and the flask is opened, the pressure in the system is 287 torr. Assuming no temperature changes, what is the volume of the manifold
Write the reaction between ferric chloride and lime slurry that results in precipitation of Fe(OH)3. For a dosage of 40 mg/l FeCl3: What is the required stoichiometric addition of lime expressed as CaO?
Balance the following skeleton reaction and include states of all reactants and products in your balanced equation.
Consider the balanced chemical reaction shown: 4PH^3 (g) + 8O^2 (g) ---> 6H^2O (l) + 1P^4O^10 (s) In a certain experiment, 8.92g of PH^3 reacts with 9.60g of O^2(g)
Suppose the current flowing from a battery is used to electroplate an object with silver. Calculate the mass (in grams) of silver the would be deposited by a battery that delivers 1.25 A/hr of charge.
Hydrogen gas can produced in the laboratory through the reaction of magnesium metal with hydrochloric acid. What is the volume, in liter, of H2 gas produced at 24°C and 835 mmHG, from the reaction of 12.0 g of Mg
If iron(III) acetate is added to be 1 x 10^-10 M in a solution that is 0.10 M NH3, what is Qsp and will Fe(OH)3 precitate? the Ksp of Fe(OH)3 is 4x10^-38 and Kb for NH3 is 1.8x10^-5
The average radius of a molecule of lyzosome, an enzyme in tears, is 1430 pm. What is it's radius in nanometers.
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