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
Cloud [144]
3 years ago
9

A 1.26 m aqueous solution of an ionic compound with the formula mx2 has a boiling point of 101.63 ∘c. part a calculate the van't

hoff factor (i) for mx2 at this concentration. express your answer using two significant figures.
Chemistry
2 answers:
iragen [17]3 years ago
6 0

Answer:

The van't hoff factor is 2.49

Explanation:

please look at the solution in the attached Word file

Download docx
12345 [234]3 years ago
5 0

<span>Answer is: Van't Hoff factor (i) for this solution is 1.051 .
Change in boiling point from pure solvent to solution: ΔT =i · Kb · b.
Kb - </span><span>molal boiling point elevation constant</span><span> is 0.512°C/m.
b -  molality, moles of solute per kilogram of solvent.
b = 1.26 m.
ΔT = 101.63°C - 100</span>°C = 1.63°C.

i = 1.63°C ÷ (0.512°C/m · 1.26 m).

i = 1.051.

You might be interested in
18. Which two particle diagrams each represent a sample of one substance? Key O = atom of oxygen = atom of hydrogen 0 = atom of
Mars2501 [29]

Answer:

1 and 11

Explanation:

3 0
3 years ago
Electrons and the Periodic Table
White raven [17]

Answer:

The third one

Xej6s?4fl45d1°6p?

6 0
3 years ago
When heated, allyl aryl ethers and allyl vinyl ethers undergo a reaction called a Claisen rearrangement, a concerted reorganizat
Alex_Xolod [135]

Answer:

See explanation below

Explanation:

I found a picture of this exercise, to show you how to do this problem.

The first picture is the compound, and the second is the mechanism of reaction to do this claisen rearrangement.

Hope this helps

5 0
3 years ago
Which of the following statements about equilibrium of chemical reactions is correct? See Concept 8.2 (Page 147) View Available
dmitriy555 [2]

Answer:

A reaction that is at equilibrium is not capable of doing any work

Explanation:

Chemical equilibrium is the state of a reversible reaction where the rate of the forward reaction equals the rate of the reverse reaction. While a reaction is in equilibrium the concentration of the reactants and products are constant.

Chemical equilibrium, a condition in the course of a reversible chemical reaction in which no net change in the amounts of reactants and products occurs. A reversible chemical reaction is one in which the products, as soon as they are formed, react to produce the original reactants. At equilibrium, the two opposing reactions go on at equal rates, or velocities, hence there is no net change in the amounts of substances involved. At this point the reaction may be considered to be completed; i.e., for some specified reaction condition, the maximum conversion of reactants to products has been attained.

3 0
3 years ago
when 10 moles of sodium reacts with excess oxygen for 60 minutes, only 3 moles of sodium remains in 1000 millimeters of H20. Wha
diamong [38]
That would be....................
8 0
3 years ago
Other questions:
  • If a liter of solution is needed, how many grams of ethanol, C2H6O will be added when a scientist creates a 0.25 molal solution?
    10·1 answer
  • Student A pushed on the cart with a force of 500 N. Student B pushed on the other side of the cart. The cart did not move. How m
    13·1 answer
  • What part of a microscope supports the weight of the microscope
    15·2 answers
  • The nadph required for co2 fixation is produced __________.
    12·2 answers
  • How you could use the scientific method to learn whether water really does take longer to boil if you are watching it.
    11·1 answer
  • The table shows the specific heat of four substances—brick, dry soil, paper, and water. If all four substances were exposed to s
    14·1 answer
  • Chemical and physical element properties are determined by their valence electrons. How do you describe metals with only one val
    6·1 answer
  • What is a membrane?
    5·1 answer
  • Hot glassware has a red glow to it<br> O True<br> O False
    12·2 answers
  • What does grain size generally indicate about the cooling of a melt? Choose one: A. Larger crystals indicate the melt cooled at
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!