Question

a student measured the maximum mass of salt that can dissolve in 100 ml of water at five different temperatures. which variable should go on the x-axis?
○ the mass of salt
○ the volume of water
○ the mass of water
○ the temperature of water

Explanation:

In a graph, the independent variable (the one manipulated or changed) is placed on the x - axis. Here, the student is changing the temperature of water to measure the mass of salt that dissolves. The volume of water is constant (100 mL), the mass of water is related to the volume (and also constant), and the mass of salt is the dependent variable (depends on temperature). So the independent variable is the temperature of water.

Answer:

the temperature of water