Acids & Bases - Unit Review

I have 25mL of 1M HCl which neutralises 20mL of NaOH. What is the concentration of the NaOH?

• 0.8 M
• 1 M
• 1.25 M

Tags

NGSS.HS-PS1-7

What is the pH of a solution that has a [H+] concentration of 1x10^-4 ?

• 10

• 4

• .0001

• 7

• [10^-4]

What is the pH of a solution that has a [OH-] of 1 x 10^-5 ?

• 9

• 5

• .00005

• 2.5

The following neutralization reaction occurs in the classroom.
HCl  +  KOH  -->  H₂O  +  KCl
If a student uses 25.0 mL of a 0.5M solution of KOH, what is the molarity of the acid if 15.0mL of acid neutralized?

• 0.8M
• 1.2M
• 12.5M

Tags

NGSS.HS-PS1-7

If the pH of a solution is 5.6 the pOH is

• 6.5
• 12.4
• 8.4
• 5.6

if a solution has a pOH of 5.2 the [OH-] of the solution is

• 6 x 10 ^-6 M
• 6.3 x 10 ^-6 M
• 1.58 x 10^-5 M
• 2 x 10^-5 M

What is the pH of a 3 x 10^-3 M solution of Al(OH)₃?

• 11.5
• 2.5
• 3
• 3.1

An acid has a pH

• higher than 7

• lower than 7

• 7

• greater than 14

if you add an acid to a base what will happen?

• BOOM

• it will neutralize

• it wont mix

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

KOH will release which ion?

• OH-
• H+
• OH+
• H-

Tags

NGSS.MS-PS1-2