Question

data table 1: temperature reading for freezing point
concentration of salt added (g) freezing point (°c)
1 0 0
2 5 -4.5
3 10 -10.1
based on paulines data, which of the following is a likely hypothesis for her experiment?
a) if you increase the amount of salt in water, then it will result in a decrease in the waters freezing - point temperature.
b) if you increase the amount of salt in water, then it will result in an increase in the waters freezing - point temperature.
c) if you decrease the amount of salt in water, then it will result in a decrease in the waters freezing - point temperature.
d) if you increase the amount of salt in water, then it will result in having no effect on the waters freezing - point temperature.

Explanation:

As the amount of salt added to water increases (from 0 to 5 to 10 grams), the freezing - point temperature decreases (from 0°C to - 4.5°C to - 10.1°C). A hypothesis should reflect this relationship. The correct hypothesis is that increasing the amount of salt in water leads to a decrease in the water's freezing - point temperature.

Answer:

A. If you increase the amount of salt in water, then it will result in a decrease in the water's freezing - point temperature.