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Lessons 11.4 & 11.5

Last updated 2 months ago

7 questions

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Question 1

1.

What is the conjugate base of HCl?

HCl2

H2O

OH-

Cl-

Question 2

2.

Identify the conjugate acid-base pair.

H2CO3 / HCO3-

H2O / H3O+

H3CO3 / OH-

CO3-2 /HCO3-

Question 3

3.

Find the conjugate base in H2SO4.

HSO3-

SO32-

H2O2

HSO4-

Question 4

4.

Which of the following has a weak conjugate base?

H2O

HCOOH

HCl

HF

Question 5

5.

What is the correct description for this solution of HBr?

strong acid

weak acid

strong base

weak base

Question 6

6.

Identify the weak base.
H2SO4(aq) + H2O(l) ⇄ H3O+(aq) + HSO4–(aq)

H2SO4

H2O

H3O+

HSO4-

Question 7

7.

A 25.00 mL sample of hydrochloric acid (HCl) is titrated with 0.150 M NaOH. It takes 32.40 mL of the NaOH solution to reach the equivalence point. What is the molarity of the HCl solution?
HCl + NaOH → NaCl + H2O

0.0972 M

0.150 M

0.194 M

0.486 M