q2t.125 - Dr. Zellmer Time: 30 mins Chemistry 125 Winter...

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Chemistry 125 Tuesday Time: 30 mins Winter Quarter 2012 February 14, 2012 Quiz II Name Rec. TA/time ---------------------------------------------------------------------------------------------------------------------------------------- Show ALL your work or EXPLAIN to receive full credit. R = 0.08206 L C atm/mol C K = 8.314 J/mol C K 1. (5 pts) Which of the following aqueous solutions has the LOWEST freezing point ? Assume “ideal” ionic solutions are formed (i.e. no ion-pairing). Show work or explain your answers. K f = 1.86°C/ m . 0.012 m aqueous Al(ClO 3 ) 3 0.015 m aqueous CuCl 2 0.020 m aqueous FeSO 4 2. (7 pts) The following data were measure for the reaction 2 A + 4 B v C + 3 D Experiment [A] (M) [B] (M) Initial rate (M/s) 1 0.100 0.100 0.1000 2 0.050 0.100 0.0125 3 0.300 0.100 2.7000 4 0.300 0.200 7.6368 5 0.100 0.200 0.2828 a) What is the rate law for the reaction? Copyright R. J. Zellmer, February 14, 2012
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q2t.125 - Dr. Zellmer Time: 30 mins Chemistry 125 Winter...

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