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Showing revision 2
Part I: For the following, give the correct chemical name or chemical formula and if it is a non, strong or weak electroylte.
1. Carbonic acid
2. K1(OH)1
3. Ammonia
4. Sulfur trioxide
5. H2SO4
Part II Answer the following question showing all appropriate work.
6a. What is the pH of a 0.250M sulfuric acid solution?
6b. What is the hydroxide concentration ( [OH1-] in this solution?
7. What is the molarity of the barium hydroxide solution if you added 25.0mL of this solution in order to complete neutralize 72.5mL of a 0.610M hydrochloride acid solution.
a. Write balanced chemical reaction.
b. Calculations.
8. Assuming that you have the acid and base in Question 7, what is the pH of the solution at the Equivalence point? If you were doing a titration, what should be the Endpoint of the pH indicator? What is the function of the pH indicator?
9a. What is the conjugate acid of the base, F1- ion.
9b. What is the conjugate base of the acid, NH41+
10a. What do you need to make a base buffer?
10b. What does a buffer do and How?