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147148example469thedpp142146 example46 1 7

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Unformatted text preview: 9. The one on the top of the Table is more reactive then the one at the bottom. So in order to have a reaction, the metal on top must be in the neutral atomic form and the one below must be in the compound or ionic form. Or you can simply memorize that the reaction direction always goes from top metal to the bottom metal. 6. How many grams of KOH are present in 35.0 mL of a 5.50 M solution? (a) 5.5 (b) 10.8 (c) 15.7 (d) 17.8 (e) 21.3 Hint: 11th ed.: p.p. 145‐147 and Example 4.7; 10th ed. p.p. 147‐148, Example 4.6; 9th ed. p.p. 142‐146. Example 4.6. 1 7. What is the final concentration (in M) of a solution when water is added to 25.0 mL of a 0.866 M KNO3 solution until the volume of the solution is exactly 500.0 mL? (d) 0.0534 (e) 0.0433 (a) 0.0252 (b) 0.0368 (c) 0.0117 Hint: 11th ed.: p.p. 147‐148 and Example 4.9; 10th ed. p.p. 149‐151 Similar to Example 4.8; 9th ed. p.p. 146‐148. Similar to the reverse question of Example 4.8. 8. What is the concentration (in M) of the final solution when a 46.2 mL, 0.568 M Ca(NO3)2 solution is mixed with 80.5 mL of 1.396 M Ca(NO3)2 solution? (a) 0.568 (b) 1.09 (c) 0.953 (d) 1.545 (e) 1.874 Hint: 11th ed.: p.p. 147‐148 and p. 162: 4.77 and 4.78; 10th ed. p.p...
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