Chemistry Worksheet Template: Arrhenius Acids (With Answer Key)
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4Chem 1515
Name__________________________
During Class Invention
TA Name ______________________
Spring 2007
Lab Section #______
+
–
Arrhenius Acids [H
], [OH
], pH and pOH
1. a. Hydrochloric acid, HCl(aq), breaks up into ions (a cation and an anion) in a
water solution. Write a chemical equation that represents this process.
+ (aq)
– (aq)
HCl
→ H
+ Cl
(aq)
b. Nitric acid, HNO
(aq), breaks up into ions (a cation and an anion) in a water
3
solution. Write a chemical equation that represents this process.
+ (aq)
– (aq)
HNO
→ H
+ NO
3 (aq)
3
c. Write a definition describing what happens to acids when they interact with
water.
An acid is a substance that when dissolved in water ionizes to
+
form hydrogen ion, H
.
(aq)
2. a. Sodium hydroxide, NaOH(aq), breaks up into ions (a cation and an anion) in a
water solution. Write a chemical equation that represents this process.
+ (aq)
– (aq)
NaOH
→ Na
+ OH
(aq)
b. Potassium hydroxide, KOH(aq), breaks up into ions (a cation and an anion) in
a water solution. Write a chemical equation that represents this process.
+ (aq)
– (aq)
KOH
→ K
+ OH
(aq)
c. NaOH and KOH are classified as bases. Write a definition describing what
happens to bases when they interact with water.
A base is a substance that when dissolved in water ionizes to form
-
hydroxide ion, OH
.
(aq)
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