Hypothesis: If you can measure the pH of a range of acids and bases using a universal pH indicator, then you can use those value

Question

4 years ago

8

Hypothesis: If you can measure the pH of a range of acids and bases using a universal pH indicator, then you can use those value

s to calibrate a cabbage pH indicator.
Which method helped you prove this hypothesis? Check all that apply.

Using various concentrations of HCl and NaOH to measure a range of pH

Using an existing scale to determine pH

Knowing that the cabbage indicator always has the same color at a given pH value

Chemistry