Quiz02-solutions

Quiz02-solutions - Version 076 – Quiz02 – Walker...

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Unformatted text preview: Version 076 – Quiz02 – Walker – (53985) 1 This print-out should have 5 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points In an aqueous solution, if the [H + ] increases, 1. the pH increases and the [OH- ] in- creases. 2. the pH decreases and the [OH- ] in- creases. 3. the pH decreases and the [OH- ] de- creases. correct 4. the pH increases and the [OH- ] de- creases. Explanation: 002 10.0 points If one mole of Ca(OH) 2 and four moles of HNO 3 are mixed in a beaker of water, one would expect the following components to be dominant in the solution after mixing 1. H 2 O, H + and NO- 3 . 2. H 2 O, Ca 2+ , OH- , H + and NO- 3 . 3. H 2 O, OH- , and NO- 3 . 4. H 2 O, Ca 2+ , OH- and NO- 3 . 5. H 2 O, Ca 2+ and H + . 6. H 2 O, Ca 2+ , H + and NO- 3 . correct Explanation: 1 mol of H + is neutralized by 1 mol of OH- . 1 mol of HNO 3 contains 1 mol of H + . 1 mol of Ca(OH) 2 contains 2 moles of OH- . Therefore 1 mol of Ca(OH)....
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Quiz02-solutions - Version 076 – Quiz02 – Walker...

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