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
andreev551 [17]
3 years ago
5

Logan is cooking, and he wants to increase the boiling point of the water. Which solute would not be a good choice as it would n

ot increase the boiling point as much as the others?
A. Salt, NaCl

B. Magnesium Sulfate, MgSO4

C. Potassium Sulfate, K2SO4

D. Sucrose, C12H22O11
Chemistry
1 answer:
Mars2501 [29]3 years ago
8 0
Sugar would not increase the boiling point of the water as much as the others.To show this, we recall the equation for boiling point elevation ∆t:  
     ∆t = i Kb m 

The difference in these four solutions will be in the product of the van't Hoff Factor i and molality m: i * m. 

If we assume that we have 0.1m of each solute, the products i*m for these solutions are:
     
     Solution                      Identity of particles                          i      i * m
        0.1 m NaCl                 Na+, Cl-                                         2     2 * 0.1 = 0.2
        0.1 m MgSO4             Mg^2+, SO4^2-                            2     2 * 0.1 = 0.2
        0.1 m K2SO4              two K+, SO4^2-                           3     3 * 0.1 = 0.3
        0.1 m C12H22O11      covalently bonded molecules     1     1 * 0.1 = 0.1

Therefore, having the lowest  i * m, sucrose will have the lowest boiling point elevation.
You might be interested in
If you visited a virtual Newton’s Cradle website or played with the real device, you might have noticed that after a few swings,
vesna_86 [32]

Answer:

gravite

Explanation:

8 0
3 years ago
The activation energy for the reaction NO2(g)+CO(g)⟶NO(g)+CO2(g) is Ea = 75 kJ/mol and the change in enthalpy for the reaction i
lapo4ka [179]

Answer:

= 100kJ

Explanation:

The reverse reaction's activation energy of a reaction is the activation energy of the forward reaction plus ΔH of the reaction:

Ea of forward reaction =75kJ

∆H = -175 kJ/mol

Ea of reverse reaction = 75 +(-175)

= 100kJ

Note that a reverse reaction is one which can proceed in both direction depending on the conditions.

6 0
3 years ago
Please help! 50 points and Brainliest!
olga2289 [7]

Answer:

exothermic reaction

Explanation:  

I think this because this is an example of an exothermic reaction is the chemical reaction between sodium and chlorine, which results in the formation of sodium chloride (also known as common salt)

8 0
2 years ago
Read 2 more answers
What does every atom of the same element have in common
VikaD [51]
All atoms of the same element have the same
number of protons. Every atom also has a nucleus.
5 0
3 years ago
Where do the nitrogen bases that are floating go
Vesna [10]
they pair up with other bases to make up the rungs of the DNA ladder
8 0
3 years ago
Other questions:
  • An experimental drug, D, is known to decompose in the blood stream. Tripling the concentration of the drug increases the decompo
    13·1 answer
  • Compute the ionization energy for a single atom of hydrogen
    9·1 answer
  • How do I find the number of atoms in grams of an element?
    9·1 answer
  • OMG SOMEONE PLEASE HELP I DONT KNOW HOW TO DO THIS
    7·1 answer
  • What is an ellipse please help)
    13·2 answers
  • When heated, nickle (II) carbonate undergoes a decomposition reaction. Write a balanced equation to describe this reaction.
    9·1 answer
  • What is the molar mass of (NH4)3 PO3?
    9·2 answers
  • How are acids and alkalis<br> similar?
    14·2 answers
  • The half reaction of an oxidation-reduction reaction shows that iron gains electrons. What does this electron gain mean for iron
    6·2 answers
  • 5. Which coefficients correctly balance the formula equation
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!