Use the References to access important values if needed for this question. The freezing point of water is 0.00°C at 1 atmosphere. How many grams of aluminum sulfate (342.2 g/mol), must be dissolved in 275.0 grams of water to reduce the freezing point by 0.350°C ? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula KB CC/m) Kr(°C/m) Water H20 0.512 1.86 Ethanol CH;CH2OH 1.22 1.99 Chloroform CHCI; 3.67 Benzene CH6 2.53 5.12 Diethyl ether CH3CH,OCH,CH3 2.02 g aluminum sulfate. Submit Answer Retry Entire Group 8 more group attempts remaining

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Use the References to access important values if needed for this question.
The freezing point of water is 0.00°C at 1 atmosphere.
How many grams of aluminum sulfate (342.2 g/mol), must be dissolved in 275.0 grams of water to reduce the freezing point by 0.350°C ? Refer to the
table for the necessary boiling or freezing point constant.
Solvent
Formula
K, (°C/m) Kf (°C/m)
Water
H20
0.512
1.86
Ethanol
CH;CH,OH
1.22
1.99
Chloroform
CHCI3
3.67
Benzene
C6H6
2,53
5.12
Diethyl ether CH3CH,OCH,CH;
2,02
g aluminum sulfate
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Transcribed Image Text:Use the References to access important values if needed for this question. The freezing point of water is 0.00°C at 1 atmosphere. How many grams of aluminum sulfate (342.2 g/mol), must be dissolved in 275.0 grams of water to reduce the freezing point by 0.350°C ? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula K, (°C/m) Kf (°C/m) Water H20 0.512 1.86 Ethanol CH;CH,OH 1.22 1.99 Chloroform CHCI3 3.67 Benzene C6H6 2,53 5.12 Diethyl ether CH3CH,OCH,CH; 2,02 g aluminum sulfate Submit Answer Retry Entire Group 8 more group attempts remaining (Previous Next Email Instructor Save and Exit Cengage Learning | Cengage Technical Support MacBook Air 888 こ。 DII DD Fア FO F10 F11 F12 & 4 5 ( ) 6 8 9 %3D delete R U P { } [ [ G H J K L : %3D re M く > ? command option ピ * 00 ト
Expert Solution
Step 1

The depression in freezing point is given by the formula :

ΔTf = i x kx m

where, m = molality = w / (M xW)

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