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
Ivenika [448]
3 years ago
12

A 7.73 mass % aqueous solution of ethylene glycol (HOCH2CH2OH) has a density of 1.19 g/mL. Calculate the molarity of the solutio

n. Give your answer to 2 decimal places.
Chemistry
1 answer:
butalik [34]3 years ago
8 0

Answer:

Molarity for the solution is 1.48 M

Explanation:

Molarity involves the moles of solute that are contained in 1L of solution. It is a sort of concentration. The most usual.

7.73 by mass involves the mass of solute that are contained in 100 g of solution, so this one of ethylene glycol contains 7.73 g of it.

Let's determine the moles of solute

7.73 g / molar mass of ethylene glycol = moles

7.73 g / 62 g/mol = 0.124 mol

If the mass of solution is 100 g, we can determine the volume with density.

Density = Mass / Volume

Volume = Mass / Density

Volume = 100 g / 1.19 g/mL = 84.03 mL

In conclusion, 0.124 moles are contained in 84.03 mL

Molarity is mol/L, so let's convert the volume in L

84.03 mL . 1L / 1000 mL = 0.08403 L

0.124 mol / 0.08403 L = 1.48 M

You might be interested in
when Mn2 ions are separated from the mixture, they go through a series of oxidizing and reducing steps. Write the reaction equat
goldfiish [28.3K]

Answer: hello some part of your question is missing below is the missing part

when H₂O and H₂O₂ is added to Mn(OH)₂(s) and put in water bath to dissolve

answer : attached below

Explanation:

When Mn²⁺ ions are separated from the mixture, attached below are the requires reaction equations that shows the process of separation.

Mn²⁺ ions are separated to the right of the reaction  equations

8 0
3 years ago
A gas under an initial pressure of 0.60 atm is compressed at constant temperature from 27 L to 3.0 L. The final pressure becomes
IRINA_888 [86]

Answer: 5.4

Explanation:

P2 = P1V1/V2

P2 = (.60atm x 27L) / 3.0L  = 5.4atm

8 0
3 years ago
3.) All matter has both physical and chemical properties. A physical property is one that does not change the chemical nature of
dexar [7]

Answer:

D

Explanation:

It would be D because you are observing the reaction and don’t change anything

8 0
2 years ago
Is 0.297 cg the same as 2.97 milligrams
satela [25.4K]
Yes, they are the same. They are equivalent.
4 0
3 years ago
Please hep its my last question
atroni [7]

Answer:Noble gases:

 are highly reactive.

 react only with other gases.

 do not appear in the periodic table.

 are not very reactive with other elements.

Explanation:Noble gases:

 are highly reactive.

 react only with other gases.

 do not appear in the periodic table.

 are not very reactive with other elements.

7 0
2 years ago
Other questions:
  • Which dissolved first in acetone? food coloring or liquid paint?​
    12·1 answer
  • What is the smallest division on this balance?
    5·2 answers
  • 14. Would you expect each of the following atoms to gain or lose electrons when forming ions ? what ion is the most likely in ea
    5·1 answer
  • Which term names the grid used to predict the result of genetic crosses?
    10·2 answers
  • Which sentence describes a characteristic of matter
    5·1 answer
  • Temperature and silica content determine the _______ of magma.
    5·1 answer
  • The rate of chemical changes (how fast they occur) can depend on several factors. What are two factors that can influence the ra
    5·1 answer
  • Water temperature
    9·1 answer
  • Which changes when gases condense to form liquids
    12·1 answer
  • Why isn't there a lunar eclipse every time Earth is in between the sun and<br> the Moon?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!