1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vovangra [49]
2 years ago
9

Paradichlorobenzene, c6h4cl2 c 6 h 4 c l 2 , is a component of mothballs. A solution of 2. 00 g g in 22. 5 g g of cyclohexane bo

ils at 82. 39 ∘c ∘ c. The boiling point of pure cyclohexane is 80. 70 ∘c ∘ c. Calculate kb k b for cyclohexane.
SAT
1 answer:
Nimfa-mama [501]2 years ago
3 0

The value of kb of cyclohexane in the given question is; kb = 2.82 °C/m

<h3>Understanding Molality of a Solution</h3>

Molality of solution = (Number of moles of C₆H₄Cl₂)/(Mass of Cyclohexane)

Now;

Number of moles of C₆H₄Cl₂ = Mass/molar mass = 2g/147 g/mol

Number of moles of C₆H₄Cl₂ = 0.0136 mol

Molality of solution = 0.0136/(22.5 * 10⁻³ kg)

Molality of solution = 0.6 m

Now, to find kb for cyclohexane, we will use the formula;

T_b(solution) - T_b(solvent) = kb × molality of solution

Thus;

82.39 - 70 = kb * 0.6

kb = (82.39 - 70)/0.6

kb = 2.82 °C/m

Read more about Molality of Solution at; brainly.com/question/10278982

You might be interested in
Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. 51 61 62 57 50 67 68 58
SCORPION-xisa [38]
What type of analysis are you looking to do on this data set? give this question brainliest, I’ll keep responding
7 0
3 years ago
Which of the following is an example of gender inequality in politics?
sergejj [24]

The answer is D, since it asks for inequality in politics

7 0
3 years ago
Read 2 more answers
Equal opportunity officer education requirement
larisa86 [58]

Equal Opportunity Representatives and Officers :: Summary. Monitor and evaluate compliance with equal opportunity laws, guidelines, and policies to ensure that employment practices and contracting arrangements give equal opportunity without regard to race, religion, color, national origin, sex, age, or disability.

6 0
3 years ago
Which of the following scenarios does NOT involve feelings leading to conflict? A. Sally ignores Betty's opinion. B. Sally feels
Oxana [17]

Answer:

C

Explanation:

Because it is the only one where sally is agreeing.

4 0
2 years ago
skate space charges $50.00 to rent their building for events and $5.50 per person to attend. a planning committee has $100.00 to
il63 [147K]

Answer:

5.50x+50.00=100.00

Explanation:

the total is going to be 100.00, and they're already planning on using 50.00 for rent. 5.50 is how much each person costs, so you'll times that by how many people are going to be there. That plus 50.00 will be equal to 100.00

3 0
3 years ago
Other questions:
  • Which region had the greatest influence on the historical and cultural development of byzantine empire?
    10·1 answer
  • 10. Which among the platen is NOT a major plate?<br> 1. Antarctic<br> (Jude un<br> 1) Tacitie
    6·2 answers
  • Helppp pleaseee (10 points ) with solution
    13·1 answer
  • Pls help this is due tonight and I need help
    13·2 answers
  • How do the result of Albert bandura’s experiment support zumbareis theories about immoral behavior
    14·1 answer
  • C2h6(g)+cl2(g)→c2h5cl(g)+hcl(g)δh=?.
    10·1 answer
  • How is the united states government based upon john.
    9·1 answer
  • In the following citation for a website which detail is optional according to mla style.
    10·1 answer
  • For long-lived assets that have been in use for more than one accounting period, depreciation expense on the ______ accumulated
    10·1 answer
  • During the summer, she likes her soccer skills so that she is ready to play in the fall
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!