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Unformatted text preview: 16. How much will the freezing point of 1050 g of benzene be lowered if 31.1 g of orcinol (C 7 H 8 O 2 ) is dissolved in the benzene? 17. What will the freezing point depression if 42.0 g of ibuprofen (C 13 H 18 O 2 ) is dissolved in 975 g of naphthalene? 18. If 13.4 of the pharmaceutical drug scopolamime (C 17 H 21 NO 4 )is dissolved in 50.3 g of water, how much will the freezing point be lowered? 19. How many grams of pyrazole must be added to 451 g of benzene to lower the freezing point by 5.00C? 20. If you lower the freezing point of 16.8 g of chloroform by 2.50C by using chlorine gas, how many grams of chlorine gas must be dissolved in the chloroform? ANSWERS TO PROBLEMS 1120: 11) 15.2 g 12) 3.31C 13) 1.4 kg 14) 63.0 g 15) 9.91 g 16) 1.22C 17) 1.46C 18) 1.64C 19) 29.9 C 20) 0.637 g...
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This note was uploaded on 07/19/2009 for the course PSE 121 taught by Professor Walker during the Spring '09 term at City Colleges of Chicago.
 Spring '09
 Walker

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