How many grams of solid NaOH must be added to 1.00 L of a 0.050 M aqueous solution of ammonia to keep the % ionization of ammonia below 0.0010%? Hint: start by writing the equilibrium for ammonia. You may assume that the volume of solution is not changed by addition of the solid NaOH.

The Water Equilibrium In any aqueous solution, the following equilibrium is established:   Since one ion is formed for each ion, the and the must be equal in pure water. A solution in which is called neutral. In pure water at 25°C, M and the following relationship is true:   where is called the ion product of water. Since the product is constant, and are inversely proportional – as one increases the other must decrease so that the product remains constant. If is greater than M, then must be less than M. A solution in which is called acidic. If is less than M then must be greater than M. A solution in which is called basic. Summary at 25°C Acidic       Basic       Neutral

Vhat would be the equilibrium composition

A 0.47 molar solution of an acid (HA) in water reaches equilibrium at a concentration of 0.36 M. What is Ka for this acid?

How does chemical equilibrium work to moderate pH? What happens when you add a strong acid to the solution with a buffer in it?

16.4 Q2

The hydronium ion concentration of an aqueous solution of 0.558 M isoquinoline (a weak base with the formula CoH-N) is ... M. = LO°H]

Determine the pOH of a weak acid (HA) solution by constructing an ICE table and using this information to determine the pOH of the solution. Complete Parts 1-2 before submitting your answer. 1 A 0.200 M aqueous solution of HA is 3.0% dissociated at equilibrium. Fill in the ICE table with the appropriate value for each involved species to determine concentrations of all reactants and products. Initial (M) Change (M) Equilibrium (M) HA(aq) + H₂O(l) 2 H3O+ (aq) 2 NEXT > + A-(aq)

In the laboratory, a general chemistry student measured the pH of a 0.528 M aqueous solution of isoquinoline, CoH;N to be 9.576. Use the information she obtained to determine the K, for this base. K„(experiment)

When someone blew into the flask that contained water with some universal indicator, and then shook the flask, the water color turned from yellow to reddish. Explain why.