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.\nto determine the ph of a solution using a ph indicator paper, you need a\ncolor key\nneutral solution\nrange of acids and bases
Answer
Brief Explanations:
To determine pH using pH - indicator paper, a color key is needed to match the color change of the paper to a pH value. A neutral solution or a range of acids and bases alone won't directly give the pH value from the indicator paper without a color - key reference.
Answer:
color key