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
Alborosie
2 years ago
11

a solution containing ethylene glycol and water has a vapor pressure of 7.88 torrtorr at 10 ∘c∘c . pure water has a vapor pressu

re of 9.21 torrtorr at 10 ∘c∘c . what is the mole fraction of ethylene glycol in the solution?
Chemistry
1 answer:
Nuetrik [128]2 years ago
3 0

Mole fraction of ethylene is = 0.144  

How to find mole fraction ?

As, Given that vapor pressure = 7.88 torr

pure water vapor pressure = 9.21 torr

∆P solvent = (X Solute)(Pº solvent)

∆Psolvent = change in vapor pressure = 9.21 torr - 7.88 torr = 1.33 torr

Xsolute = mole fraction of the solute = ?

Pºsolvent = vapor pressure of the pure solvent = 9.21 torr

1.33 torr = (Xsolute)(9.21)

Xsolute = 1.33 torr/9.21 torr)

Xsolute = 0.144

Hence the mole fraction of ethylene is = 0.144  

learn more about mole fraction is here :

brainly.com/question/14783710

#SPJ4

You might be interested in
What is the Molar mass of Na3P
Sedaia [141]

Answer:

99.943071 g/mol

Explanation:

22.98977*3+30.973761

6 0
3 years ago
Why it’s possible to walk through air but not a concrete wall
Sunny_sXe [5.5K]

well you can't walk through the air but you can't walk through a concrete wall because all of the solid atoms holding it together

3 0
3 years ago
What is the variable for the equilibrium constant<br><br> Re<br> K<br> Ec<br> E
Nitella [24]

Answer: I am pretty sure it is E

Explanation:

6 0
3 years ago
Which of the following does not serve as a way to neutralize the charge in a body?
MrRa [10]

Answer:

B. Adding more protons to a positively charged body until the number of protons matches the number of electrons.

Explanation:

7 0
3 years ago
What element is being oxidized in the following redox reaction?
DIA [1.3K]

Answer:

The element that has been oxidized is the N

Explanation:

Zn²⁺(aq) + NH₄⁺(aq) → Zn(s) + NO₃⁻(aq)

See all the oxidation states:

Zn²⁺  → acts with +2

In ammonia, H acts with +1 and N with -3

Zn(s), acts with 0. In all the elements in ground state, the oxidation state is 0.

Zn changed from 2+ to 0. The oxidation number, has decreased.

This element has been reduced.

NO₃⁻ (aq) it's a ion, from nitric acid.

N acts with +5

O acts with -2

The global charge is -1

The N, has increased the oxidation state, so this element is the one oxidized.

8 0
3 years ago
Other questions:
  • Determine which of the following is the best example of a testable question:
    8·1 answer
  • Which statement is true about the properties of the majority of the elements in the far left column of the periodic table?
    7·2 answers
  • Jill then wrote the formulas for all the possible compounds that sodium can form with the other ions. What formulas did she writ
    10·1 answer
  • When 14.8 g KOH is dissolved in 85.6 g of water in a coffee-cup calorimeter, the temperature rises from 19.3 °C to 32.76 °C. Wha
    8·1 answer
  • How many shells does Potassium (K) have?​
    9·2 answers
  • ILL IBE BRAINLY Asian Tsunami 2004:
    14·1 answer
  • The decomposition of dinitrogen pentaoxide has an activation energy of 102 kJ/mol and ΔH°rxn = + 55 kJ/mol. What is the activati
    14·1 answer
  • Hello can someone plss help me with this question!!
    15·1 answer
  • How many ATOMS of boron are present in 3.61 grams of boron trifluoride ?
    11·1 answer
  • Calculate the concentration of the rubidium hydroxide solution in g dm³. (relative atomic mass: Rb = 85; relative formula mass:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!