AP Chem Unit 8

Acids donate ___.

• H+

• OH-

• H20

• H

Which is NOT a strong acid?

• HNO3

• HBr

• H2SO3

• H2SO4

The stronger the acid, the ____ the conjugate base.

• weaker

• stronger

• larger

• smaller

What creates a buffer?

• weak acid and weak base

• strong acid and strong base

• weak acid and its conjugate base

• conjugate base and conjugate acid

When is MV=MV true?

• always

• never

• at the 1/2 equivalence point

• at the equivalence point

pH=

• [H+]^10

• -log[H+]

• 10^[H+]

• -log[OH-]

[H+]=

• 10^-pH

• pH^10

• pH^-10

• 10^pH

To make more buffer capacity, someone will need...

• fewer moles of weak acid and conjugate base

• a high temperature

• more moles of weak acid and conjugate base

• moles of weak acid and conjugate base do not matter

Tags

NGSS.HS-PS1-5

Which pairing has an equivalence point above 7?

• weak acid and strong base

• weak base and strong acid

• strong acid and strong base

• weak acid and weak base

During a "weak + strong" titration, where is pH=pKa?

• the beginning of the titration

• equivalence point

• 1/2 equivalence point

• the end of the titration