Chemistry Final

Acids/Bases

100

Identify the acid, base, conjugate acid, and conjugate base in the following:

HNO₂ + HS^- --> NO₂^- +H₂S

HNO₂ + HS^- --> NO₂^- +H₂S

Acid      Base      CB      CA

200

What is the [OH^-] of a solution if it has 4.32 x 10^-7M of [H⁺]? Is it acidic or basic?

2.31 x 10^-8M [OH^-]

It is an acid 

Rules Of Science

200

How many significant digits are in the following:

5067

0.0340

4.32 x 10⁷

5067 = 4 significant digits

0.0340 = 3 significant digits

4.32 = 3 significant digits