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Final Review Ch. 20 (Part 2)
Final Review Ch. 20 (Part 2)
15
Chemistry
11th Grade
05/28/2006

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Term
Which hydroxide compound yields the lowest concentration of hydroxide ions in aqueous solution?
A. sodium hydroxide
B. potassium hydroxide
C. calcium hydroxide
D. magnesium hydroxide
Definition
D. magnesium hydroxide
Term
What is an acid according to Bronsted?
Definition
A substance that is a hydrogen ion donor.
Term
Which compound can act as both a Bronsted-Lowry acid and a Bronsted-Lowry base?
Definition
water
Term
What is a conjugate acid made from?
Definition
a Bronsted-Lowry base
Term
What is the term used to describe a substance that can be both an acid and a base?
Definition
amphoteric
Term
According to the Bronsted-Lowry theory, water ______.
A. acts as a base when it acceprs a hydrogen ion
B. can be neither an acid nor a base
C. can act as an acid by accepting hydrogen ions
D. can accept but not donate hydrogen ions
Definition
A. acts as a base when it acceprs a hydrogen ion
Term
What is the acid disocciation constant of a weak acid if a concentration of 0.3M gives a hydrogen ion concentration of 0.001M?
Definition
3 x 10^-6
Term
What is the concentration of acid if the hydrogen-ion concentration is 0.001M and the acid dissociation constant is 0.000 000 1?
Definition
10^-1 M
Term
The acid disocciation constant for an acid dissolved in water is equal to the ______.
Definition
equilibrium constant times the concentration of water.
Term
What is the value for the acid disocciation constant for a weak acid?
Definition
less that 0.001
Term
Which ionization constant is the largest for phosphoric acid?
Definition
the first
Term
Which base has the smallest base disocciation constant?
A. potassium hydroxide
B. sodium hydroxide
C. calcium hydroxide
D. ammonia
Definition
D. ammonia
Term
Which acid can be concentrated but is always weak?
A. acetic acid
B. hydrochloric acid
C. nitric acid
D. Sulfuric acid
Definition
A. acetic acid
Term
Which of the following pairs consists of a weak acid and a strong base?
A. sulfuric acid, sodium hydroxide
B. acetic acid, ammonia
C. acetic acid, sodium hydroxide
D. nitric acid, calcium hydroxide
Definition
C. acetic acid, sodium hydroxide
Term
Classify each as strong or weak and then as acid or base: SA, SB, WA, WB
A. sulfuric acid
B. Sodium hydroxide
C. acetic acid
D. ammonia
Definition
A. SA
B. SB
C. WA
D. WB
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