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Solution: What volume of ethanol (density = 0.7893 g/cm3) should be added to 450 mL of water in order to have a solution that freezes at -15.0°C? [For water, Kf = 1.86°C/m.] (i) 371 mL (ii) 470 mL (iii) 212 mL (iv) 132 mL (v) 167 mL

Problem

What volume of ethanol (density = 0.7893 g/cm3) should be added to 450 mL of water in order to have a solution that freezes at -15.0°C? [For water, K= 1.86°C/m.] 

(i) 371 mL 

(ii) 470 mL 

(iii) 212 mL 

(iv) 132 mL 

(v) 167 mL

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