Question

A student conducts an experiment to determine the effect of adding salt on the boiling temperature of water. The results are shown below. Sample Amount of Salt Boiling Temperature Sample 1 0 g 100.0° C Sample 2 2 g 102.3° C Sample 3 5 g 104.8° C Sample 4 10 g 107.5° C Which is a reasonable hypothesis for this experiment? Question 25 options: If salt is added to water, the water will boil at a higher temperature Salt makes water boil If water is boiling, it must have salt added to it If salt is added to water, the water will get cloudy

Answer 1

Answer:

If salt is added to water, the water will boil at a higher temperature.

Explanation:

A student conducts an experiment to determine the effect of adding salt on the boiling point of water. He used some samples, adding salt (S) and measuring the boiling point (B) of the resulting solution.

First sample: S = 0 B = 100.0° C. Pure component.

Second Sample: S = 2.2 g B = 102.3° C

Third Sample: S =2.5 g B = 104.8° C

Fourth sample S= 10 g B =  107.5° C.

As it is shown by the resulting measurements, increasing salt content, water will boil at a higher temperature.

Let's study a little bit more this experiment:

- What is the independent variable? amount of salt . It is controlled.

- What is the dependent variable in this experiment?  Boiling point. It is measured

- What is a value that should remain constant for all samples in this experiment? amount of water should be constant, in order to keep the same conditions

-What is a reasonable hypothesis for this experiment?

Given the options, the only reasonable hypothesis for this experiment is: If salt is added to water, the water will boil at a higher temperature.

Finally, we can conclude that If salt is added to water, the water will boil at a higher temperature.

Answer 2

Answer:

The answer to your question is: The first option is correct.

Explanation:

From the data given, we conclude that as the amount of salt increases, the boiling point of water increases.

Options

If salt is added to water, the water will boil at a higher temperature This is the hypothesis for the experiment.

Salt makes water boil. This statement is not true.

If water is boiling, it must have salt added to it. This statement is incorrect, it is not the goal of the experiment.

If salt is added to water, the water will get cloudy There is not evidence of that from the information given.