Question

Currently this lab is run qualitatively asking only for whether a solution is acidic, neutral, or basic. If quantitative information was to be acquired for this experiment, what range of pHs would the universal indicator described in your lab manual be unable to distinguish?

(A) 7.6-8.0
(B) 7.0
(C) 8.0-8.6
(D) 6.0-7.6

Answer 1

The only PH range which is not covered by any of the given components of the universal indicator is 7.6-8.0

Hence the PH range 7.6-8 can't be described using universal indicator.