Editing Updated Answer To Final Exam Review Worksheet
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Answers: <u>Part I</u><br> 1) 2 <nowiki>NaCl</nowiki><sub> (aq)</sub> + 1 Ag<sub>2</sub>SO<sub>4 (aq)</sub> --> 1 Na<sub>2</sub>SO<sub>4 (aq)</sub> + 2 <nowiki>AgC</nowiki><sub>l(s)</sub><br> Cl<sup>1-</sup> + Ag<sup>1+</sup> --> <nowiki>AgCl</nowiki><br> 2) 15.3g N<sub>2</sub><br> 3) 0.0811 mole , 296mmHg<br> 4) 9.70KJ given off (so you could put a negative sign to show this)<br> 5) pH = 4.35 , [OH<sup>1-</sup>] = 2.2E-10M<br> 6) 1.72ml<br> 7) Oxidation number of S = +4<br> 8) 9.8E-3 moles<br> 9) 0.11 liter<br> 10) 3.87L<br> 11) EF = H1O1 , MF = H2O2 , O% = 94.2% H% = 5.8%<br> 12) 0.278 liter , does not float<br> 13) 720.nm , Red<br> 14) 1.13E4 M<sup>-1</sup><br> <u>Part II</u><br> a) <nowiki>HNO</nowiki><sub>2</sub><br> b) Calcium carbonate<br> c) <nowiki>SnCl</nowiki><sub>2</sub><br> d. Trisulfur heptaphosphide<br> <u>Part III</u><br> a) Cr - 1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>6</sup>4s<sup>1</sup>3d<sup>1</sup>3d<sup>1</sup>3d<sup>1</sup>3d<sup>1</sup>3d<sup>1</sup><br> b) S<sup>2-</sup> - 1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sub>x</sub><sup>2</sup>3p<sub>y</sub><sup>1</sup> 3p<sub>z</sub><sup>1</sup><br> <u>Part IV</u><br> a) 1,11,8,6 Combustion<br> b) 1,2,1,2 Double Replacement<br> c) 44.6 liter O<sub>2</sub><br> <u>Part V</u><br> 1) pH= 0.921<br> 2) pH=13.383<br> 3) [H+] = 8.9 x 10-5 M<br> 4) [OH<sup>1-</sup>] = 4 x 10-6 M <br> 5) 4.7 L of 0.200M HCl solution would required<br> <br>
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