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WorksheetsChapter 16A and 16B quiz (acids and bases)
Total questions: 25
Worksheet time: 27mins
is a base
is a neutral substance
could never be an acid
is an acid
Which of the following is true about acids and bases?
The lower the pH, the stronger the acid
the higher the pH, the stronger the acid
The lower the pH, the more neutral the acid
Which type of ion does an acid produce when it is dissolved in water?
oxide
oxygen, O2
hydronium, H3O+
hydroxide, OH-
Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper turns red.
The substance in the beaker
is a base.
has a neutral pH.
is an acid.
does not have a pH.
Which of the following statements is correct?
Blue litmus paper turns red when placed in a base.
Red litmus paper turns blue when placed in a base.
Blue litmus paper stays blue when placed in an acid.
Red litmus paper stays red when placed in a base.
Which of the following are the characteristics of a BASE? (Choose 2 of these.)
Very bitter in taste
Liberate OH- ions when dissolved in water
Have pH of less than 7
Turns blue litmus red
According to the pH range given in the image,which substance is more acidic than lemon juice?
Hydrochloric acid
Cabbage
Milk
Milk Of Magnesia
Which among the following is NOT a base? It's an acid.
NH3
KOH
HCl
NH4OH
What is the pH of a solution that has a [H+] of 2.5 x 10-5?
4.6
2.5
5.0
7.0
What is the [H+] if the pH is 4.0?
1.0 x 10-10 M
1.0 x 10-14 M
1.0 x 10-4 M
1.0 x 10-7 M
Find the pH (not pOH) of a solution with [OH-] = 8.41 x 10-4.
Find pOH then pH. Which is the pH?
3.08
10.92
9.88
11.2
If the [H3O+] of a solution is 9.30 x 10-3 M, the pOH of the solution will be... more than one step. Find the pH then the pOH.
2.03
1.02
12.00
11.97
The hydroxide ion (OH) concentration in a soft drink is 5.00 x 10-12 M. Find the pH not the pOH. More than one step.
What is the conjugate acid in the following equation? Conjugates are on the product side.
What is the conjugate base in the following reaction? Conjugates are on the product side.
Which of the following is an Arrhenius Acid?
LiOH
CO32-
OH-
H3PO4
Reacts with metals to release hydrogen gas
Acid
Base
water
Draw the 3 circles with the 3 different definitions of acids and bases. Use it to answer questions.
A Bronsted-Lowry base is always a Lewis base.
true
false
A Lewis acid is always an Arrhenius acid.
true
false
Ammonia (NH3) is an Arrhenius base.
true
false
What is the conjugate acid?
HPO4-2 + H2O -> OH- + H2PO4-1
HPO4-2
H2O
OH-
H2PO4-1
What is the conjugate base?
OH- + HCN -> H2O +CN-
OH-
HCN
H2O
CN-
What is the acid? Not the conjugate acid.
HPO4-2 + H2O -> OH- + H2PO4-1
HPO4-2
H2O
OH-
H2PO4-1
Match carefully
Arrhenius acid
release H+ and are aqueous
Arrhenius base
release OH-
and are aqueous
Bronsted Lowry Acid
proton donors
Bronsted Lowry Base
Proton Acceptors
Lewis Acid
Electron acceptors
