Answer to Question #306830 in General Chemistry for madie3

Question #306830

What are the freezing point and boiling point of a solution that contains 5 g glycerol (  and 20 mL of water? 



1
Expert's answer
2022-03-07T17:28:01-0500

Mass of glycerol = 5g

Volume of water = 20 ml

Mass of water = 20 g

Molar mass of glycerol = 92 g/ mol

For boiling point of solution

"\\Delta T_b = K_bm"

"\\Delta T_b = 0.512 \u00d7 \\frac{5}{92\u00d720}\u00d71000"

"\\Delta T_b =1.39 K"

And for freezing point

"\\Delta T_f= K_fm"


"\\Delta T_f= 1.86\u00d72.71"

"\\Delta T_f= 5.05 K"



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