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
I well give 300 points for this question
polet [3.4K]
If the temperature of a fish population increases then, the population of fish will increase because the fish like warmer areas to breed and lay eggs.

I'm not sure if this is correct. But always use IF THEN and BECAUSE when writing a hypothesis 
7 0
3 years ago
Read 2 more answers
Which will cause the value of the equilibrium constant to change? (2 points)
Sonbull [250]

answer

changing the temperature and increase in the pressure

Change in concentration, pressure, catalyst, inert gas addition, etc. have  no effect on concentration, pressure, catalyst, inert gas addition lead to a shift in equilibrium position .

4 0
3 years ago
Read 2 more answers
A compound containing Na, C, and O is found to have 1.06 mol Na, 0.528 mol C, and 1.59 mol O. What is the empirical formula of t
Effectus [21]

Given :

Moles of Na : 1.06

Moles of C : 0.528

Moles of O : 1.59

To Find :

The empirical formula of the compound.

Solution :

Dividing moles of each atom with the smallest one i.e 0.528 .

So,

Na : 1.06/0.528 = 2.007 ≈ 2

C : 0.528/0.528 = 1

O : 1.59/0.528 = 3.011 ≈ 3

Rounding all them to nearest integer, we will get the number of each atom in the empirical formula.

So, empirical formula is Na_2CO_3 .

Hence, this is the required solution.

5 0
3 years ago
The standard Gibbs energy of reaction, ÄG°, for the dissociation of phenol is 56.4 kJ mol-1 at 298 K. Calculate the pKa of pheno
In-s [12.5K]
A is the answer to this question
3 0
3 years ago
Given the balanced equation representing a reaction:
dimaraw [331]
The answer is (4) synthesis. Synthesis reaction means that two or more reactants combine directly to one production. Substitution or single replacement means that one element of a compound is replaced by another element. Double replacement means that two ionic reactants exchange ions to form two new productions.
3 0
3 years ago
Other questions:
  • Calculate the equilibrium constants K’eq for each of the following reactions at pH 7.0 and 25oC, using the ∆Go’ values given: (a
    6·1 answer
  • 100 ml of soft drink A contains 75g of sugar and weighs 110g. calculate density
    7·1 answer
  • Which of these is a pure substance<br> A.Diamond.<br> B.Salt<br> C.Ocean Water
    15·2 answers
  • the frog population in the Amazon basin varied. every 500 years there was a mutational change leading to speciation. in between
    10·1 answer
  • What is the difference between an atom of silver and an<br> atom of gold?
    5·2 answers
  • Lewis Dot structure for N2?<br> PHOTO ABOVE <br><br> Is not D I got it wrong
    7·1 answer
  • Determine whether each of the following is exothermic or endothermic and indicate the sign of ΔH.
    10·1 answer
  • How can math tools help you detect errors or inaccuracies in data .
    9·1 answer
  • Which statement accurately describes the reactants of a reaction?
    7·1 answer
  • Indicate the compartment (A or B) that will increase in volume for each of the following pairs of solutions separated by a semi-
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!