Physics Middle School

A mass of 80 g of KNO3 is dissolved in 100 g of water at 50 ºC. The solution is heated to 70ºC. How many more grams of potassium nitrate must be added to make the solution saturated? Explain your reasoning

Answers

Answer 1
Hi um i think its At 30 ° C your welcome
Answer 2

50 g more potassium nitrate must be added to make the solution saturated at 70 °C.

Solubility:

It is the degree of dissolved substance at room temperature or 25 °C per  [tex]\bold {g/100\ cm^3}[/tex].

Saturation:

If no more solute or solid substance is dissolved in the solution, then the solution is called saturated.

Saturation increase with the increase in temperature because the kinetic energy of the particles is increased.

Therefore, 50 g more potassium nitrate must be added to make the solution saturated at 70 °C.

To know more about Solubility:

https://brainly.com/question/13620168

Related Questions

The photo shows a system that consists of a person on a diving board. What change could you make to the system that would decrease its total energy?


A. Replace the diver with someone who has more mass.

B. Decrease the height of the diving board.

C. Increase the length of the diving board.

D. Increase the height of the diving board.


*If you do not know the answer, then DON'T respond. I will report you. Also, explanations are appreciated but if not then that's fine.

Answers

Answer:

B

Explanation:

If you decrease the height of the diving board, you will create less energy because you will build up less acceleration jumping from a lower height. Hope this helps ya!

Option B is the answer

Which of these subatomic particles is found in the nucleus of an atom?
a. the protons and electrons
b. the neutrons and electrons
c. the protons
d. protons and neutrons

Answers

Answer is d “ protons and neutrons”
The answer is D protons and electrons

HELP FAST CORRECT ANSWERS ONLY 20PTS
Select the correct answer.
Which absolute magnitude rating would be the dullest?
A. -6
B. 0
C. +2
D. -1

Answers

Answer:

-6 I got you my guy hghdhccjxhH

Answer:

+2

Explanation:

This would be the correct answer. Hope this helps!

Bart ran 5000 meters from the cops and had an average speed of 6 meters/second before he got caught. How long did he run?

Answers

Answer:

thats is a long time

Explanation:

maybe 1 hour

Answer:

833.3 seconds

Explanation:

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6t/6 = 5000/6

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Answers

Answer:

It will keep the goals from being comeplet when they wanted it to.

Explanation:

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Answers

A & C I hope I’m right on this one :)

Answer:

These deep-ocean currents are driven by differences in the water's density, which is controlled by temperature (thermo) and salinity (haline).

Explanation:

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