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Acid-Base Equilibria

Authored by Kimberly Milligan

Chemistry

University

NGSS covered

Used 4+ times

Acid-Base Equilibria
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12 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

According to the Brønsted-Lowry definition, a base is a:

Proton donor

Electron pair acceptor

Proton acceptor

Electron pair donor

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

In the reaction HCl + H₂O → H₃O⁺ + Cl⁻, the conjugate base of HCl is:

HCl

H₃O⁺

H₂O

Cl⁻

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The ion-product constant for water (Kw) at 25°C is:

1.0 x 10⁻7

1.0 x 10⁻14

1.0 x 10⁻1

1.0 x 10⁻10

Tags

NGSS.HS-PS1-3

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

An amphiprotic substance is one that:

Can only act as an acid.

Can only act as a base.

Can act as both an acid and a base

Is always neutral

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A solution with a pOH of 3 is considered:

acidic

basic

neutral

impossible to determine

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The pOH of a solution with a hydroxide ion concentration [OH⁻] of 1.0 x 10⁻5 M is:

5

9

-5

10-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A weak acid has a:

Large Ka value.

Small Ka value.

Ka value equal to 1.

Ka value equal to Kw.

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