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6 Multiple Choice 0.5 points The diagrams here represent solutions at various stages in the titration of a weak base B (such as NH;) with HCI. = B = BH+ = H20+ (a) (b) (c) (d) Identify the solution that corresponds to the half-equivalence point. a b 7 Multiple Choice 0.5 points Suppose a titration was performed in which an acid of pH 6 was being titrated. The equivalence point of the titration was near pH 8. What indicator should be added to the acid solution before the titration is carried out? O phenolphthalein phenol red bromothymol blue O methyl orange