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
gogolik [260]
2 years ago
15

Potassium chloride (KCl), sodium sulfate (Na2SO4), glucose (C6H12O6), and sodium phosphate (Na3PO4) are soluble in water. Rank t

he solution from the lowest impact on phase change temperatures to highest based on colligartve properties if they all have the same molarity concentration.
a. KCl
b. Na2SO4
c. C6H12O6
d. CO2
e. (NH4)3PO4
Chemistry
1 answer:
Nimfa-mama [501]2 years ago
8 0

Answer:

(NH4)3PO4 > Na2SO4 > KCl > C6H12O6 > CO2

Explanation:

Colligative properties are those properties that depend on the amount of solute present in the system.

Usually, the more the number of particles in the system, the greater the impact of colligative properties on phase change temperatures if all the solutions have the same molarity concentration.

Hence, the order of impact on phase change temperatures is as follows; (NH4)3PO4 > Na2SO4 > KCl > C6H12O6 > CO2

You might be interested in
78.2 divided by 32cm³<br><br><br>​
klio [65]

Answer:

2.44375

rounded=2.44

6 0
3 years ago
Read 2 more answers
How much 6.0 M of nitrous acid (HNO2), in milliliters, is needed to make 235 mL of 1.00M<br> HNO2?
vladimir1956 [14]

Answer:

How many hydrogen MOLECULES are needed to produce 2 molecules of water (H2O)?

Explanation:

3 0
3 years ago
Please answer asap!
kaheart [24]
200 ml is 1/5 of a liter, so the answer is five times the number of moles present in the solution. 0.6 moles/0.2 liter = x moles/1.0 liter. Solving for x gives 0.2 x = 0.6 or x = 3.0 M

so the answer is c
3 0
3 years ago
Which of the following must be true about a reaction if it is only spontaneous at high temperatures?
Anastaziya [24]

1) Answer is: It is endothermic, with both positive enthalpy and entropy changes.

Endothermic reactions (ΔH>0) that increase the entropy of the system (ΔS>0) are spontaneous at high temperatures.

The change in Gibbs free energy (ΔG), at constant temperature and pressure, is: ΔG=ΔH−TΔS.

ΔH is the change in enthalpy.

ΔS is change in entropy.

T is temperature of the system.

When ΔG is negative, a reaction (occurs without the addition of external energy) will be spontaneous (exergonic).

2) Answer is: It is endothermic and heat is added to the system.

There are two types of reaction:

1) endothermic reaction (chemical reaction that absorbs more energy than it releases, ΔH>0).

2) exothermic reaction (chemical reaction that releases more energy than it absorbs).

For example, the breakdown of ozone is an endothermic process. Ozone has lower energy than molecular oxygen (O₂) and oxygen atom, so ozone need energy to break bond between oxygen atoms.

3) Answer is: For every two AB produced, the reaction requires three A.

Balanced chemical reaction: 3A + B → 2AB.

From balanced chemical reaction: n(A) : n(AB) = 3 : 2.

n(A) = 3 · n(AB) ÷ 2.

A and B are reactants and AB is product of balanced chemical reaction.

For every two AB produced, the reaction requires one B.

4) Answer is:

the amount of required activation energy = potential energy of the B - potential energy of the reactants A.

the enthalpy change of the reaction = potential energy of the products C - potential energy of the reactants A.

For all chemical reaction some energy is required and that energy is called activation energy (energy that needs to be absorbed for a chemical reaction to start).

This is endothermic reaction.

3 0
3 years ago
Choose the correct statement. The cathode is the electrode where the oxidation takes place. Both oxidation and reduction may tak
gregori [183]

Answer:

The cathode is the electrode where the reduction takes place.

Explanation:

Cell has three components:

an electrolyte and two electrodes which is a cathode and an anode.

Electrolyte is usually solution of the water or other solvents in which the ions are dissolved.

<u>In electrolytic cell:</u>

Negatively charged electrode is the cathode where the process of reduction takes place.

Positively charged electrode is the anode where the process of oxidation takes place.

<u>In galvanic cell:</u>

Positively charged electrode is the cathode where the process of reduction takes place.

Negatively charged electrode is the anode where the process of oxidation takes place.

<u>So, the correct answer is - The cathode is the electrode where the reduction takes place.</u>

6 0
3 years ago
Other questions:
  • A water molecule is composed of two hydrogen atoms and one oxygen atom arranged in a bent shape. Since oxygen is significantly m
    10·2 answers
  • Which reaction illustrates the conservation of matter during a redox reaction
    10·1 answer
  • When it is winter, the United States receives the least direct solar energy, as compared with the rest of the year. Why does thi
    11·1 answer
  • Does anyone know What does pH= ?
    15·2 answers
  • Lakes, rivers, and streams are created due to what stage of the water cycle?
    8·2 answers
  • Which statement about gases is true? A. They are made up of particles that always move very slowly. B. They are made up of parti
    11·2 answers
  • Pls help will give brainlist
    5·1 answer
  • What is the mass of 4.76 moles of Na3Po4?
    10·1 answer
  • How would one convert 125 lb to kilograms (1 oz = 28 g)?
    11·1 answer
  • a plant cell has a solute potential of -2.0 bars and pressure potential of 0.0. what is its water potential? show your work if i
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!