The freezing point of benzene C,H, is 5.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in benzene is TNT (trinitrotoluene). How many grams of TNT, C,H&N3O6 (227.1 g/mol), must be dissolved in 269.0 grams of benzene to reduce the freezing point by 0.400°C ? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula K CC/m) KrCC/m) Water H,0 0.512 1.86 Ethanol CH;CH,OH 1.22 1.99 Chloroform CHCI3 3.67 Benzene CH6 2.53 5.12 Diethyl ether CH3CH2OCH2CH3 2.02

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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 TNT (trinitrotoluene).
How many grams of TNT, C,H<N30, (227.1 g/mol), must be dissolved in 269.0 grams of benzene to reduce the freezing point by 0.400°C ? Refer to
the table for the necessary boiling or freezing point constant.
Solvent
Formula
K, (°C/m) Kr (°C/m)
Water
H2O
0.512
1.86
Ethanol
CH;CH,OH
1.22
1.99
Chloroform
CHCI3
3.67
Benzene
CH6
2.53
5.12
Diethyl ether CH3CH,0CH,CH3
2.02
g TNT.
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Transcribed Image Text:ssignment/takeCovalentActivity.do?locator=assignment-take 国R B Homepage - Geor. Editor - Citation M... Home | Navigate m HBO Max MyLab & Masterin. * Cengage Learning se:. [References) Use the References to access important values if needed for this question. The freezing point of benzene C,H, is 5.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in benzene is TNT (trinitrotoluene). How many grams of TNT, C,H<N30, (227.1 g/mol), must be dissolved in 269.0 grams of benzene to reduce the freezing point by 0.400°C ? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula K, (°C/m) Kr (°C/m) Water H2O 0.512 1.86 Ethanol CH;CH,OH 1.22 1.99 Chloroform CHCI3 3.67 Benzene CH6 2.53 5.12 Diethyl ether CH3CH,0CH,CH3 2.02 g TNT. Submit Answer Retry Entire Group 7 more group attempts remaining Previous Next Email Instructor Save and Exit Cengage Learning | Cengage Technical Support MacBook Air F4 DII DD F7 F8 F9 F10 F11 F12 & 5 6 7 ) 8 9 + T Y { } [ G H J K L + || ....
Expert Solution
Step 1

Given:

Depression in freezing point = 0.400°C

Molar mass of TNT = 227.1 g/mol

Mass of benzene = 269.0 g

Kf of benzene = 5.12°C/m

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