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
igor_vitrenko [27]
3 years ago
13

What is the change in boiling point for a 0.615m solution of Mgl2 in water?

Chemistry
1 answer:
ivanzaharov [21]3 years ago
4 0

Answer :  The change in boiling point is, 0.94^oC

Explanation :

Formula used :

\Delta T_b=i\times K_f\times m

where,

\Delta T_b = change in boiling point = ?

i = Van't Hoff factor = 3 (for MgI₂ electrolyte)

K_f = boiling point constant for water = 0.51^oC/m

m = molality  = 0.615 m

Now put all the given values in this formula, we get

\Delta T_b=3\times (0.51^oC/m)\times 0.615m

\Delta T_b=0.94^oC

Therefore, the change in boiling point is, 0.94^oC

You might be interested in
A sample of n2 effuses in 255 s. how long will the same size sample of cl2 take to effuse?
7nadin3 [17]
For this problem, we use Graham's Effusion Law to find out the rate of effusion of chlorine gas. The formula is as follows:

R₁/R₂ = √(M₂/M₁)

Let 1 be N₂ while 2 be Cl₂

255/R₂ = √(28/70.8)
Solving for R₂,
R₂ = 405.5 s

<em>Thus, it would take 405.5 s to effuse chlorine gas.</em>
4 0
3 years ago
What is the net force on this box?<br> A.) 0<br><br> B.) 45<br><br> C.)25<br><br> D.)90
Degger [83]

Answer:

D

Explanation:

Hopefully this helps you!

3 0
3 years ago
Read 2 more answers
Which models of the atom include a structure that is mostly made of empty space?RutherfordThomsonBohrQuantum mechanical
Luba_88 [7]
<h2>Answer:</h2>

Rutherford's models

<h2>Explanations:</h2><h2>What is the electron cloud model?</h2>

There are known as the region where electrons are found especially in the nucleus.

According to the five basic atomic models which have contributed to the structure of the atom itself, the Rutherford's models of the atom include a structure that is mostly made of empty space compared to thomson that proposed the plum pudding model of the atom

4 0
1 year ago
Help would be much appreciated, I'm being timed<br> I'll mark brainliest !!
Vitek1552 [10]
Group 17

Please brainliesttt
7 0
3 years ago
The necessity of ascorbic acid for its role in _____ is believed to be the reason that people with scurvy have no energy and are
Debora [2.8K]

Answer:

Carnitine Synthesis

Explanation:

Ascorbic acid acts as a cofactor in various hydroxylation and amidation reactions by electron transfer to enzymes that provide reducing equivalents. Accordingly, ascorbic acid is required or facilitates the conversion of certain proline and lysine residues of the procollagen, the oxidation of lysine side chains to proteins, providing hydroxytrimethylsiline for carnitine synthesis. This means that ascorbic acid is essential for the carnitine synthesis.

Carnitine is derived from amino acids and acts as a cofactor for the enzyme acetyltransferase responsible for the transport of fatty acids to mitochondria. Your presence in the body is very important for feeling energetic and strong. The lack of canitine, influenced by the lack of ascorbic acid in individuals suffering from scurvy, causes a lack of energy.

5 0
3 years ago
Other questions:
  • MARK ALL of the objects that can be found in our Solar System
    9·2 answers
  • 3. Why is it necessary to use structural formulas to represent many organic compounds
    10·2 answers
  • Which of the following lists stars in order of increasing size?
    5·2 answers
  • How much heat is released when 0.762 mol of copper cools<br> from 81.6°C to 52.2°C?
    8·1 answer
  • What are the rules for calculating protons
    5·1 answer
  • How many grams of octane (C8H18) must be burned to produce 300.0g of CO2?
    15·1 answer
  • H2O2 is what type of compound?
    11·2 answers
  • This is for Earth/Space Science. Please help me and thank you in advance. I need this quickly please and thank you.
    9·1 answer
  • What is the [H+] if pOH =9.50 <br> will it be acid or basic?
    6·1 answer
  • 4. Who has the most sensitive taste buds?<br> adults<br> babies<br> teenagers<br> the elderly
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!