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<b>AP Chemistry Summer Work Answer Key</b> <i>Note : :1L =1dm3 :1.0 X 10<sup>3</sup> ml = 1.0E3 ml</i> <b>Set#1 Pg30</b> :30a) 0.134nm ::b) 1.34A :37) 110.km/s :41) 39.2 degree C and 312.4K :69) 6E10 ft<sup>3</sup> and 7E14 ug and 7E5 kg :72) Can't tell (need to show data) <b>Set#2 Pg72</b> :42)Can't show in answer key :66)Can't give answer :70)Can't give answer <b>Set#3 Pg123</b> :15) 24.31amu :47a) 294.30g/mol ::b) 3.40E-2mol ::c) 459g ::d) 1.0E19 molecules ::e) 4.9E21atoms of nitrogen ::f) 4.9E-13g or 4.9E2fg :49)<nowiki>CdS</nowiki> (77.79%Cd), <nowiki>CdSe</nowiki> (58.73% Cd), <nowiki>CdTe</nowiki> (46.83% Cd)<br> :61)Empirical Formula (EF) is C<sub>3</sub>H<sub>6</sub>O<sub>2</sub> :67)EF = C<sub>1</sub>H<sub>1</sub> Molecular Formula (MF) = C<sub>6</sub>H<sub>6</sub> :69)C<sub>3</sub>H<sub>8</sub> <b>Set#4 Pg123</b> :77d) Can't show answer but all atoms must balance :77e) Can't show answer but all atoms must balance :87) 97g of concentrated sulfuric acid :90a) 73.9g ::90b) 1.30E2g :96a) 18.0g <nowiki>HgBr</nowiki><sub>2</sub> produced ; 7.97g Br<sub>2</sub> reacted ; 1.03g Br<sub>2</sub> excess ::96b)35.0g <nowiki>HgBr</nowiki><sub>2</sub> produced :106)Cu<nowiki>SO</nowiki><sub>4</sub> 5H<sub>2</sub>O ::Chemical name is called Copper (II) sulfate pentahydrate
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