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.
