Acids and Bases
The table below lists the approximate pHs of a variety of beverages. 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 best to drink on a regular basis?
water
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 substances will form a basic solution in water?
Ca(OH)2
Which of these substances will form an acidic solution in water?
HBr
Which of the following equations represents an acid-base reaction?
HCN(aq) + LiOH(aq) H2O(l) + LiCN(aq)
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 HCl?
Hydrochloric acid
What products are formed during the following reaction? H2SO4 (aq) + KOH (aq)?
K2SO4 and H2O
What products are formed during the following reaction? HCl (aq) + NaOH (aq)?
NaCl and H2O
According to Arrhenius, which of the following compounds is a base?
NaOH
Which of the following equations can be classified as an acid-base reaction?
NaOH(aq) + H2SO4(aq) H2O (l) + Na2SO4(aq)
A solution that turns red litmus paper blue is _______.
a base
Which of these will neutralize an acidic solution?
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
A chemical that releases hydrogen ions when dissolved in water is called?
an acid
According the above diagram, which substance is more basic than eggs?
antacid
A solution with a pH of 9 is?
basic
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 basic substance?
beaker 3
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
According the above diagram, which substance is more acidic than vinegar?
lemons
<--RSQ 2-->What is the name of the base Mg(OH)2?
magnesium hydroxide
Neutralization reactions can be used to prepare pure samples of salt.If you wanted to prepare a pure sample of lithium nitrate through a neutralization reaction, which of the following should be combined?
nitric acid and lithium hydroxide
Which of the following is a numerical measurement that tells how acidic or basic a solution is?
pH
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
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 H2SO4?
sulfuric acid
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
A bar of soap makes water feel slippery. Which value is most likely to be the pH of a solution of soap?
9.0