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6. You wish to investigate whether the rate of stirring a solid affects how fast it dissolves in water
a.Write a hypothesis for the investigation.
b. Identify the variable to change and the variables to keep constant to conduct a fair test
Answers
Explanation:
a. The hypothesis can be:
"The rate of stirring may directly increase the solubility of the solid particles because it helps in evenly distributing the particles in the solvent present".
By conduction of the experiment, We can find if this hypothesis is true or false.
b.
The amount of solute dissolved, solvent taken in container, Temperature of the system will be the constants while the rate of stirring( i.e. how vigorously the spoon is moved in the container) will be a variable.
Answer:
The hypothesis can be:
"The rate of stirring may directly increase the solubility of the solid particles because it helps in evenly distributing the particles in the solvent present".
By conduction of the experiment, We can find if this hypothesis is true or false.
b.
The amount of solute dissolved, solvent taken in container, Temperature of the system will be the constants while the rate of stirring( i.e. how vigorously the spoon is moved in the container) will be a variable.
Explanation: