The pH of a 0.22M cyanic acid solution is: A. 1.7 B. 4.93 C. 9.07 Soft drinks ha

Question

The pH of a 0.22M cyanic acid solution is:

                A.            1.7

                B.            4.93

                C.            9.07

Soft drinks have pH of about:

                A.            8.0

                B.            7.0

                C.            3.0

In solutions using acetic acid as the solvent, HCl is found to be stronger than HNO3.  This is an example of the leveling effect.

True

False

The pH of a 0.42M dimethylamine solution is:

                A.            1.80

                B.            12.2

                C.            2.5

                D.            1.7

In the reaction between BF3 and NH3, BF3 is the:

                A.            Lewis acid

                B.            Lewis structure

                C.            Lewis base

The pH of a 0.00364M KOH solution is:

                A.            7.0

                B.            11.6

                C.            2.44

In the reaction between BF3 and NH3, BF3 is the

                A.            electrophile

                B.            protophile

                C.            nucleophlie

Explanation / Answer

1)B. 4.93

2)C. 3.0

3)B. 12.2

4) A. Lewis acid

5) B. 11.6

6)A. electrophile

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