Question

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

Answer 1

All the answers are correct

Explanation:

Just did the Edge question and got it all correct

Answer 2

Answer:

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

Explanation:

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