Post-lab 5 Acid-Base Titration-problems-2

Post-lab 5 Acid-Base Titration-problems-2 - wetsel(zpw67...

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Unformatted text preview: wetsel (zpw67) – Post-lab 5 Acid-Base Titration – lyon – (51900) 1 This print-out should have 28 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. Many chemistry textbooks will include chloric acid as a strong acid. Assume that questions in this post-lab assignment classify chloric acid as a strong acid. 001 10.0 points What is the pH of a solution if the [H 3 O + ] is 1 × 10- 4 M? 002 10.0 points When we titrate a strong acid with a strong base, the pH at the equivalence point is 1. more than 7. 2. 7. 3. less than 7. 003 10.0 points Which of the following is NOT a weak acid? 1. hydrofluoric acid 2. phosphoric acid 3. chloric acid 4. cyanic acid 5. carbonic acid 6. hypochlorous acid 7. sulfurous acid 8. acetic acid 004 10.0 points Rules of significant figure do not apply to the answer of this question. Calculate the volume of 1.65 M sulfuric acid in milliliters that is required to com- pletely neutralize 50.00 ml of 0.755 M sodium hydroxide. Answer in units of mL. 005 10.0 points Rules of significant figure do not apply to the answer of this question. Calculate the amount of KHP in grams that is required to completely neutralize 32.50 ml of 0.580 M potassium hydroxide. 006 10.0 points Calculate the molarity of a Ca(OH) 2 solution if it takes 25.0 mL to titrate 0.650 g of KHP in a standardization titration. (KHP has one H + and a formula weight of 204.2 g/mol.) 1. 0.127 M 2. 0.255 M 3. 0.0796 M 4. 0.0637 M 5. 5.31 M 007 10.0 points Rules of significant figure do not apply to the answer of this question. In a titration, 4 . 1 g of an acid (HX) requires 36 . 4 mL of 0 . 65 M NaOH(aq) for complete reaction. What is the molar mass of the acid?...
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This note was uploaded on 07/18/2011 for the course CH 204 taught by Professor Leytner during the Spring '08 term at University of Texas.

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Post-lab 5 Acid-Base Titration-problems-2 - wetsel(zpw67...

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