hypothesis: if you can measure the ph of a range of acids and bases using a universal ph indicator, then you…

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.\nwhich method helped you prove this hypothesis? check all that apply.\n□ using various concentrations of hcl and naoh to measure a range of ph\n□ using an existing scale to determine ph\n□ knowing that the cabbage indicator always has the same color at a given ph value

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.\nwhich method helped you prove this hypothesis? check all that apply.\n□ using various concentrations of hcl and naoh to measure a range of ph\n□ using an existing scale to determine ph\n□ knowing that the cabbage indicator always has the same color at a given ph value

Answer

Brief Explanations:

To prove the hypothesis about calibrating a cabbage pH - indicator using pH values from a universal pH indicator, using various concentrations of HCl and NaOH can provide a range of pH values for calibration. Using an existing scale to determine pH gives a standard for comparison. And knowing the consistent color - pH relationship of the cabbage indicator helps in calibration.

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