The freezing point of water is 0.00°C at 1 atmosphere. How many grams of nickel(II) nitrate (182.7 g/mol), must be dissolved in 277.0 grams of water to red 0.300°C ? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula K, (°C/m) Kf (°C/m) Water H2O 0.512 1.86 Ethanol CH3CH2OH 1.22 1.99 Chloroform CHCI3 3.67 Benzene C,H6 2.53 5.12 Diethyl ether CH3CH,OCH,CH3 2.02
The freezing point of water is 0.00°C at 1 atmosphere. How many grams of nickel(II) nitrate (182.7 g/mol), must be dissolved in 277.0 grams of water to red 0.300°C ? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula K, (°C/m) Kf (°C/m) Water H2O 0.512 1.86 Ethanol CH3CH2OH 1.22 1.99 Chloroform CHCI3 3.67 Benzene C,H6 2.53 5.12 Diethyl ether CH3CH,OCH,CH3 2.02
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter12: Solutions
Section: Chapter Questions
Problem 12.65QE
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as per guidelines you can answer these two question because they are bits of the same question
Transcribed Image Text:The freezing point of water is 0.00°C at 1 atmosphere.
How many grams of nickel(II) nitrate (182.7 g/mol), must be dissolved in 277.0 grams of water to reduce the freezing point by
0.300°C ? Refer to the table for the necessary boiling or freezing point constant.
Solvent
Formula
K, (°C/m) Kf(°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 CH;CH2OCH,CH3
2.02
g nickel(II) nitrate.
Transcribed Image Text:The boiling point of water is 100.00 °C at 1 atmosphere.
A student dissolves 13.54 grams of chromium(II) iodide, CrI, (305.8 g/mol), in 261.2 grams of water. Use the table of boiling and
freezing point constants to answer the questions below.
Solvent
Formula
K, (°C/m) Kf(°C/m)
Water
H2O
0.512
1.86
Ethanol
CH;CH,OH
1.22
1.99
Chloroform
CHC13
3.67
Benzene
C,H6
2.53
5.12
Diethyl ether CH;CH2OCH,CH3
2.02
The molality of the solution is
m.
The boiling point of the solution is
°C.
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