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In school, Jarrett learned that salt lowers the freezing point of water. He wants to test this in a home experiment.
Jarrett adds 100 mL of water at 25°C into each of three identical containers. He then adds 0 g of salt to the first container, 25 g of salt to the second, and 50 g of salt to the third container.
Which of the following is a constant in his experiment?

A the amount of water
B the starting temperature of the water
C the amount of salt
D the type of container

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mwyattf mwyattf · Answer 1 · 2019-05-05T23:58:12+02:00

A. the amount of water is a constant (aka independent variable)

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kumaripoojavt kumaripoojavt · Answer 2 · 2022-06-02T13:08:45+02:00

The amount of water is constant in the Jarrett in each of the three identical containers experiment.

The temperature at which a liquid boils and turns to vapour.

The water molecules need more energy to produce enough pressure to escape the boundary of the liquid.

The more salt (or any solute) added to water, the more you raise the boiling point.

When the ionic compound salt is added to the equation, it lowers the freezing point of the water.

Salt molecules block water molecules from packing together when the temperature is lowered.

It then prevents them from becoming ice. More water molecules leave the solid phase than the ones entering the solid phase.

Hence, option A is correct.

Learn more about a boiling point here:

https://brainly.com/question/2153588

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