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6. The concentration of H3O in your stomach is 0.012 M. What is the pH of your stomach?

7. Write the balanced reaction when nitric acid and potassium hydroxide react together.

8. Write the balanced reaction when potassium bicarbonate reacts with sulfuric acid.

9. If 50.0 mL of a 0.120 M solution of sulfuric acid is titrated with 0.150 M sodium hydroxide, then how many mL of sodium hydroxide will be used?

10. What product results from alpha emission by 244-Pu?

11. What isotope would produce 84-Kr after emitting a beta-particle?

12. The half-life of 208-Po is approximately 3.00 years. When it decays, it emits an alpha particle and produced 204-Pb as a product. If you had 15 grams of 208-Po today, then how many grams of 204-Pb would you have after nine years?

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