The freezing point of benzene C,H, is 5.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in benzene is DDT. How many grams of DDT, C,H,Cls (354.5 g/mol), must be dissolved in 274.0 grams of benzene to reduce the freezing point by 0.350°C ? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula K CCm) KCCm) Water H,0 CH,CH,OH CHCI, 0.512 1.86 Ethanol 1.22 1.99 Chloroform 3.67 Benzene 2.53 5.12 Diethyl ether CH,CH,OCH,CH, 2.02 gDDT.

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The freezing point of benzene C,H, is 5.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in benzene is
DDT
How many grams of DDT, C,H,Cls (354.5 g/mol), must be dissolved in 274.0 grams of benzene to reduce the freezing
point by 0.350°C ? Refer to the table for the necessary boiling or freezing point constant.
Solvent
Formula
K CCm) K CCm)
Water
H,O
0.512
1.86
Ethanol
CH,CH,OH
1.22
4.99
Chloroform
CHCI,
3.67
Benzene
2.53
5.12
Diethyl ether CH,CH,OCH,CH,
2.02
g DDT.
Transcribed Image Text:The freezing point of benzene C,H, is 5.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in benzene is DDT How many grams of DDT, C,H,Cls (354.5 g/mol), must be dissolved in 274.0 grams of benzene to reduce the freezing point by 0.350°C ? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula K CCm) K CCm) Water H,O 0.512 1.86 Ethanol CH,CH,OH 1.22 4.99 Chloroform CHCI, 3.67 Benzene 2.53 5.12 Diethyl ether CH,CH,OCH,CH, 2.02 g DDT.
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