Show work for all problems that require problem solving.

1) Potassium iodate KIO3 can be heated until it decomposes with loss of O2 to form potassium iodide, Kl. Write a balanced equation for this reaction

2) If 2.502 g of KIO3 is heated until the above reaction is completed and at the end of the reaction 1.932 g of KI remains what is the experimental % O in the sample? Show work

3) A students pipette 10ml of 0.001 M HCI solution and dilutes it with water to 100ml. Show your work. What is the molarity of the solution after dilution? What is the ph of the solution before and after dilution?

4) Sulfuric acid is a diuretic acid. Write the equation for its neutralization reaction with NaOH. How many ml of a 0.200 M solution of NaOH would be required to neutralize 25.00 ml of 0.100 M solution of sulfuric acid?

5) Explain the relative solubility of NaCl in water vs petroleum ether. Explain the relative solubility naphthalene in water vs petroleum ether. Why is sucrose soluble in water?

6) Name three factors that affects the rates of reaction based on collision theory.

7) Write a balanced equation for the reaction of Mg with HCI (aq).

8) What is the ph of a solution of 0.0020 M HCI?

9) 1.2 g of the strong base NaOH are dissolved in water and diluted to 50 ml. What is the ph of this solution?