Review book acids & bases answers - Tully School District

Name: _________________________________
1) ____ Which word equation represents a neutralization reaction?
a) base + acid salt + water
b) base + salt water + acid
c) salt + acid base + water
d) salt + water acid + base
2) ____ An aqueous solution of lithium hydroxide contains hydroxide ions as the only negative ion in the solution. Lithium
hydroxide is classified as an
a) aldehyde
b) alcohol
c) Arrhenius acid
d) Arrhenius base
3) ____ One alternate acid-base theory states that an acid is an
a) H+ donor
b) H+ acceptor
c) OH − donor
d) OH − acceptor
4) ____ Which substance is always a product when an Arrhenius acid in an aqueous solution reacts with an Arrhenius
base in an aqueous solution?
a) HBr
b) H 2 O
c) KBr
d) KOH
5) ____ Which change in pH represents a hundredfold increase in the concentration of hydronium ions in a solution?
a) pH 1 to pH 2
b) pH 1 to pH 3
c) pH 2 to pH 1
d) pH 3 to pH 1
6) ____ Which indicator would best distinguish between a solution with a pH of 3.5 and a solution with a pH of 5.5?
a) bromthymol blue
b) bromcresol green
c) litmus
d) thymol blue
Given the equation:
7) ____ Which ion is represented by X?
a) hydroxide
b) hydronium
c) hypochlorite
d) perchlorate
Base your answers to questions 8 and 9 on the information below.
In performing a titration, a student adds three drops of phenolphthalein to a flask containing 25.00 milliliters of HCl(aq).
Using a buret, the student slowly adds 0.150 M NaOH(aq) to the flask until one drop causes the indicator to turn light pink.
The student determines that a total volume of 20.20 milliliters of NaOH(aq) was used in this titration.
8) The concentration of the NaOH(aq) used in the titration is expressed to what number of significant figures? ______
9) Calculate the molarity of the HCl(aq) used in this titration. Your response must include both a correct numerical setup
and the calculated result.
Regents Review – Acids & Bases 1-2 Created: February 2010

Name: _________________________________
10) ____ One acid-base theory defines a base as an
a) H+ donor
b) H+ acceptor
c) H + donor
d) H + acceptor
11) A student completes a titration by adding 12.0 milliliters of NaOH(aq) of unknown concentration to 16.0 milliliters of
0.15 M HCl(aq). What is the molar concentration of the NaOH(aq)?
Base your answers to questions 12 through 14 on the information below.
A student used blue litmus paper and
phenolphthalein paper as indicators to test
the pH of distilled water and five aqueous
household solutions. Then the student
used a pH meter to measure the pH of the
distilled water and each solution. The
results of the student’s work are recorded
in the table below.
12) Identify the liquid tested that has the
lowest hydronium ion concentration.
____________________________
13) Explain, in terms of the pH range for
color change on Reference Table M,
why litmus is not appropriate to
differentiate the acidity levels of tomato juice and vinegar.
14) Based on the measured pH values, identify the liquid tested that is 10 times more acidic than vinegar.
15) ____ The data collected from a laboratory titration are used to calculate the
a) rate of a chemical reaction
b) heat of a chemical reaction
c) concentration of a solution
d) boiling point of a solution
16) ____ When one compound dissolves in water, the only positive ion produced in the solution is H 3 O(aq). This
compound is classified as
a) a salt
b) a hydrocarbon
c) an Arrhenius acid
d) an Arrhenius base
17) ____ Which salt is produced when sulfuric acid and calcium hydroxide react completely?
a) CaH 2
b) CaO
c) CaS
d) CaSO 4
Regents Review – Acids & Bases 2-2 Created: February 2010