homework8

homework8 - a. Addition of 500 mL of water. b. Addition of...

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Homework #8 Name____________________ Chem 30A 1. (2 pts) If 2.34 g of NaOH are dissolved in 500 mL of water. What is the pH and the pOH of the solution? 2. (4 pts) a. Write the net ionic equation for the reaction between nitric acid and sodium hydroxide. b. What substance would be added to buffer this solution? _____________ 3. ( 4 pts) A student titrates 20.0 mL of 2.0 M sulfuric acid with 30.0 mL NaOH to reach the endpoint. What is the molarity of the NaOH solution?
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4. (4 pts) A student starts with 500. mL of a 4.0 pH solution. Calculate the resulting pH according to the following changes.
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Unformatted text preview: a. Addition of 500 mL of water. b. Addition of 25.0 g of NaCl. (Assume the resulting volume is about 500 mL) 5. (4 pts) Write the names for the following compounds. a. H 2 SO 3 _____________________ b. NH 4 OH ________________________ c. HBr ______________________ d. HNO 3 __________________________ 6. (2 pts) Consider the weak acid hydrofloric acid. a. What salt could be added to buffer this solution? ________________ b. Write the net ionic equation for the addition of a small amount of acid to the buffered solution....
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homework8 - a. Addition of 500 mL of water. b. Addition of...

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