I do not understand these questions, please help!
Questions
A solution of pH 3 has times (more/fewer) H+ than a solution of pH 7.
A solution of pH 9 has times (more/fewer) H+ than a solution of pH 4.
How many moles of H+ are in a liter of solution with a pH of 4?
How many H+ are there in a liter of a solution with a pH of 4?
Diffusion and Molecular Weight
What was the hypothesis that you tested in this demonstration?
What is the independent variable(s)?
What is the dependent variable?
Complete the following table:
distance substance diffused over time in millimeters
time malachite green (mm) potassium permanganate (mm)
one hour
two hours
three hours
four hours
Do the results in the table above support the hypothesis?
What relationship exists between molecular weight and the rate of diffusion?
