The freezing point of water is 0.00 °C at 1 atmosphere. How many grams of cobalt(II) bromide (218.7 g/mol), must be dissolved in 276.0 grams of water to reduce the freezing point by 0.450 °C? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula Kb (°C/m) K(C/m) Water H₂O 0.512 Ethanol CH3 CH₂OH 1.22 Chloroform CHC13 3.67 2.53 C6H6 Benzene Diethyl ether CH3 CH₂ OCH2₂ CH3 2.02 Mass= [Review Topics] [References] Use the References to access important values if needed for this question. Submit Answer g Retry Entire Group 1.86 1.99 5.12 4 more group attempts remaining
The freezing point of water is 0.00 °C at 1 atmosphere. How many grams of cobalt(II) bromide (218.7 g/mol), must be dissolved in 276.0 grams of water to reduce the freezing point by 0.450 °C? Refer to the table for the necessary boiling or freezing point constant. Solvent Formula Kb (°C/m) K(C/m) Water H₂O 0.512 Ethanol CH3 CH₂OH 1.22 Chloroform CHC13 3.67 2.53 C6H6 Benzene Diethyl ether CH3 CH₂ OCH2₂ CH3 2.02 Mass= [Review Topics] [References] Use the References to access important values if needed for this question. Submit Answer g Retry Entire Group 1.86 1.99 5.12 4 more group attempts remaining
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The freezing point of water is 0.00 °C at 1 atmosphere.
How many grams of cobalt(II) bromide (218.7 g/mol), must be dissolved in 276.0 grams of water to reduce
the freezing point by 0.450 °C? Refer to the table for the necessary boiling or freezing point constant.
Solvent
Kb (°C/m) Kr(°C/m)
Water
H₂O
0.512
Ethanol
CH3 CH₂OH,
1.22
3.67
CHC13
Chloroform
2.53
C6H6
Benzene
Diethyl ether CH3 CH₂ OCH₂ CH3 2.02
[Review Topics]
[References]
Use the References to access important values if needed for this question.
Retry Entire Group
Conte *Owx
1.86
1.99
5.12
New T
4 more group attempts remaining
→]
Other Bookmark](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F61a624e8-9805-4882-bd7c-8b439f9ba0a9%2F7d38663b-3be2-47b2-9d77-d503b3457667%2Fj5lqwyb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:er
Answe
b Answe
Mass=
Home
Submit Answer
b Answe
ngagenow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator= assignment-take
Formula
g
C Chego
Blackb
The freezing point of water is 0.00 °C at 1 atmosphere.
How many grams of cobalt(II) bromide (218.7 g/mol), must be dissolved in 276.0 grams of water to reduce
the freezing point by 0.450 °C? Refer to the table for the necessary boiling or freezing point constant.
Solvent
Kb (°C/m) Kr(°C/m)
Water
H₂O
0.512
Ethanol
CH3 CH₂OH,
1.22
3.67
CHC13
Chloroform
2.53
C6H6
Benzene
Diethyl ether CH3 CH₂ OCH₂ CH3 2.02
[Review Topics]
[References]
Use the References to access important values if needed for this question.
Retry Entire Group
Conte *Owx
1.86
1.99
5.12
New T
4 more group attempts remaining
→]
Other Bookmark
Expert Solution
Step 1
Colligative properties: The colligative properties are those properties of solutions that depend on the number of solute particles, and not depend on the nature of the solute particles. The number of solute particles can be related to the molality of the solution. These properties depend on the nature of the solvent.
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