Acids and Bases
Homework 14.1
1. Identify each property as acid (,4), a base (B), or both (C).
exhibits a sour taste
exhibits a bitter taste
feels slippery to the touch __
an electrolyte
reacts with metals to produce hydrogen gas _Eÿ,
turns red litmus paper blue ÿ..:
turns blue litmus paper red __
2. Name or provide the formula for these acids and bases.
Acid
Acid Name
....
,',t::
Formula
H2Se
/I','
Base
Formula
Base Name
magnesium hydroxide
HClO3
AI(OH)3
sulfurous acid
barium hydroxide
hydrobromic acid
iron (II) hydroxide
hydroiodic acid
strontium hydroxide
LiOH
HN02
,
i'ff'ÿ
(: ti")
) /
What are the 3 strong binary acids?
!-/ !!ÿy , and
1-I t
4. What are the 4 strong ternary acids?
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Acids and Bases
Homework 14.1
How do you determine if a base is strong or weak?
5,
6. Label the following as strong acid (SA), weak acid (WA),
strong base (SB), or weak base (WB);
HCl ,ÿ';-ÿ
H2CO3 "ÿ Z,
Be(OH)2 ÿ
HCI03 ,,,Jÿ
HF ÿ,,iÿA\
4
HN03 :'i/ÿ'\
NaOH -" (-'
, H3P03 kÿf\,
H2S04 "
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Acid Base
Acid and Base Theory
1,
Homework 14.2
Each of the following unbalanced equations represents a
reaction between an Arrhenius acid and an Arrhenius base.
- ..................... -,7ÿ
Circle the (Arrhenius acid and Box the Arrhenius bas .
You will only mark on the reactant side!
0
a,
+
.............................
NH4OHi ÿ (NH4)2C03 + H20
c.#"RF[) + INaOHÿ ÿ NaF + H20
d. tBa(6H)21 + HN62 -* Ba(NO ) +
2ÿ Complete the following tables.
/
Conjugate Base
l
oÿ ÿ1ÿ HI
CN4
Conjugate Acid
1 ÿ(' hl
NH4+1
O2
H2CO3
C2H3024 ÿ ÿCÿ Iÿ>(),ÿ
HNO3
,
B-L Base
t-!l)
NH3
011 - 1
Iÿ,,] I!ÿ,IIÿ
For each reaction draÿ an arroÿ between conjugate pairs
AND Label each reactant and each product in these
equations as a Brÿnsted-Lowry acid, Brÿnsted-Lowry base,
conjugate acid or conjugate base.
...................................
a.
HNO3 (aq)
Acid Base
+
H20 (I) ÿ
NO3- (aq) 4-
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H3O+ (aq)
5
Homework 14,2
bl
H2S (aq)
+
Acid and Base Theory
F
H20 0)
-ÿ
/ ÿI
NH3 (aq) +
C.
HS (aq) 4-
H30ÿ (aq)
q,
l
C <,r%,
H20 (1) ÿ
NH4+
(aq)
4-
OH- (aq)
acid has 1
1
hydrogen atom. An example is HNO3.
1
A ÿ±'J ÿ'ÿ
acid has 2
hydrogen atoms. An example is H2S.
acid has 3
.
hydrogen atoms. An example is H3PO4.
6
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Acid Base
pH and pOH
1. [
Homework 14.3
\
] meansÿi,OÿC('vÿlÿtÿi{:4Jk
2. pH = - 1oÿ:ÿ f;ÿ-'ÿ.i
pOH = lÿl''4ÿ1ÿ
.
Identify each of the following as being an acid, base, or
neutral solution.
a. pH = 4.8
b. pH = 9.0
c. pH = 7.00
.
Given the following pH values, find the pOH for each
solution:
,ÿt ÿ ,14ÿ ÿ
'7 ÿ-i
a, pH = 10.5 pOH = ,'?
b. pH = 11.2
c.
pH = 4.75
pOH =
°,ÿ0,,5';'
pOH =
d. pH = 6.9 pOH = /, I
=
Given the following [H30+] values, determine the pH and
the pOH of each solution:
,, ÿ.'."
a. [H30+] = 1.0 x 10-2
pH
pOH __
pOH __
__ pOH
b. [H30+] = 1.0 x 10-s
pH
c. [H30+] = 1.0 x 10-3
pH ....
d. [H30+] = 1.0 x 10-4
pH__ÿI
Acid Base
/
iiÿ
pOH
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Homework 14,3
w
pH and pOH
Given the following pH values, determine the [H30 +] and
the pOH for each solution: ÿ
i,o¢ÿ: t4ÿ
a, pH = 4.8 [H30+] !,,?ÿ'ÿ;<ÿ}
pOH =
b. pH = 12.1 [H30+] !,<ÿlÿtÿ) ÿ': pOH = I
I
c. pH = 7.2 [H30+] [,_ÿ:ÿl'zÿtÿ< pOH =
d. pH = 5.0 [H30+] ÿ,ÿiv',ltl!ji pOH =
/ÿ1 ,/'D,
,
Complete the follo, wi'ing table.
pH
pOH
3,2
10,7
[H30+]
1.0
8,7
!jÿ " j
6.5
11.2
8
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Acid Base
Neutralization and Titration
Homework 14,4
1. Write complete ha#anted equations for these acid-base
reactions.
a,
b.
/1,.'ÿ ÿ
__ H2SO4(aq) +
- KOH (aq) -ÿ ÿ ,'
......
HCI (aq) 4" __ LiOH (aq) -'ÿ l l/(ÿ
C. __. H3PO4 (aq) 4-
d.
",. ,ÿ;,ÿ,Iÿ ÿ \ÿ,ÿ,,I
HNO3 (aq) 4.
Ca(OH)2 (aq) -->Ih t !j ('ÿ l
Mg(OH)2 (aq) ---> ÿ) ÿ!ÿ/ ÿi) ÿ l i'S!'(4ÿ
2. What is the concentration (molarity) of NaOH if 20.0 mL of
the solution is neutralized by 28.0 mL of 1.00 N HCI?
tv\ ÿ,-,,
,
How many\/"f-m'Lÿof
.... 1._00 H HÿPO4 would be required to
neutralize 20.0 mL of 2.61 N LiOH?
Acid Base
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Homework 14,4
Neutralization and Titration
4. How many mL of a 0.020 M KOH solution will neutralize !5
mL of a 0.40 M HCI solution?
WA
,
l'v\ (\
Calculate the molarity_ of a H_N_03 solution if it takes 100,0.
mL of the acid to neutralize 65,0 mL of a 2,50 M NaOH
solution,
ÿ"ÿ\ÿ,:
}J ÿ40ÿ .',,. i-l<'>,Oll ..... ">- II, C:} ; J<:,.ÿ-!.oÿ.
('t,<,,A') (, :/-,' ;+ W{>( f<,<,-" 0,,,ÿ')
r,.,ol A ÿv\c;; ÿ,/ Iÿ'.
\ID,
.
1Vÿ I',
If 40.8 mL of a 2,0 M HCI solution are needed to neutralize
60.0 mL-Of NaOH, what is the mo!arjty of the base?
"dO
\t/ÿl : "!
,
I'J\CT,
,,
ÿ,\,I'ÿ ,ÿ b,/o,(' t
,",sÿ ÿ'-\ ,<-.,,o,<ÿ .
.........
_
:- 'ÿ,mto-; +
.....
t ,-- :ÿ
10
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