SI Acids and Bases
Lemon juice has a sour taste. Which value is most likely to be the pH of the lemon juice?
5.0
Svante Arrhenius was a Swedish scientist who developed a unique way of defining acids and bases. How did Arrhenius define acids and bases?
Acids produce hydronium ions in solution, and bases produce hydroxide ions in solution.
Which of these describes a neutralization reaction?
An acid is added to a base and it makes a salt and water.
Which of these substances will form a basic solution in water?
Ca(OH)2
Which of these substances will form an acidic solution in water?
H2CO3
Which of the following equations represents an acid-base reaction?
HCN(aq) + LiOH(aq) H2O(l) + LiCN(aq)
What products are formed during the following reaction? H2SO4 (aq) + KOH (aq)
K2SO4 and H2O
Which of the following equations can be classified as an acid-base reaction?
NaOH(aq) + H2SO4(aq) H2O (l) + Na2SO4(aq)
Which of the following properties do acidic and basic solutions have in common?
They both conduct electricity.
A chemical that releases hydroxide ions when dissolved in water is called _______.
a base
A solution that turns red litmus paper blue is _______.
a base
When dissolved in water, baking soda, or sodium bicarbonate, can undergo the following reaction. NaHCO3(s) + H2O(l) H2CO3(aq) + Na+(aq) + OH-(aq) This reaction indicates that baking soda is
a basic substance.
Neutralization reactions typically occur between a strong acid and a strong base to produce
a salt and water.
What acid can be found in vinegar?
acetic acid
A solution with a pH of 5 is
acidic.
Which of the above items is the most basic?
ammonia
Which of these will neutralize a basic solution?
an acid
According the above diagram, which substance is more basic than eggs?
antacid
Heidi has three liquids in separate beakers, but they are only labeled as beaker 1, 2, and 3. Her teacher gives her a chart of some characteristics of the three liquids and asks her to determine whether the liquids in the beakers are basic, acidic, or neutral. Which beaker holds a neutral substance?
beaker 1
What substance do lemons contain that makes them taste sour?
citric acid
What is the correct name for the compound with the formula Cu(OH)2?
copper (II) hydroxide
What name is given to the acid with the chemical formula HCl?
hydrochloric acid
<--RSQ 2-->What is the name of the base LiOH?
lithium hydroxide
Acids are compounds that produce hydrogen ions when dissolved in water. Inorganic acids are those acids which do not contain carbon. Thus, inorganic acid formulas usually begin with hydrogen and end with one or more nonmetal components other than carbon. What is the name of the inorganic acid with the formula HNO3?
nitric acid
What is the name of the acid with the formula HNO3
nitric acid
Acids are compounds that produce hydrogen ions when dissolved in water. Inorganic acids are those acids which do not contain carbon. Thus, inorganic acid formulas usually begin with hydrogen and end with one or more nonmetal components other than carbon. What is the name of the inorganic acid with the formula H3PO4?
phosphoric acid
It has been shown that beverages that are very acidic can wear away the enamel that protects the teeth. Given this information, which of the above beverages would be the worst to drink on a regular basis?
soda
Solutions which contain excess hydrogen ions are considered acidic, while solutions which contain excess hydroxide ions are considered basic. Neutral solutions contain an equal number of hydrogen and hydroxide ions. Which of the following is an example of a neutral solution?
water
Hydrochloric acid is slowly added to a basic solution of potassium hydroxide until it is neutralized. What is the approximate pH of the neutralized solution?
7.0
A bar of soap makes water feel slippery. Which value is most likely to be the pH of a solution of soap?
9.0
