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NAME
_
DATE
PERIOD
_
_
2S p-Ir /f~r~ C 0ah~.
Chapter 14: Concentration Calculations
1. What is the percent by mass of NaHC03 in a solution containing
~
20.0 g of NaHC03 dissolved in 600.0 mL
of H20?
% by
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_
20· ~ /VqikO)
20, ~
A.
NaH({}J.f ~OOIOU#'l.O
==
::- (POD. O!1 ~O
V
} IYltHz-O
-;,1.-3
2. You have 1500.0 g of a bleach solution. The percent by mass of the solute sodium hypochlorite
is 3.62%. How many grams of NaOCI are in the solution?
;Ja DCI
;nqSS
_ /5"60.Q
100 :; .? 62-,%
ble()th
3. What is ~
-
alcohol in 1.1 L of water?
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percent by volume of isopropyl alcohol in a
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x: 1(;0
t~~:n~~!24
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:L
-:
%
(NaOCI)
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)
3
£~r;if
fJo. a-j
7.
How many grams of CaCI2 should be dissolved in 500.0 mL of water to make a 0.20 M solution
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0 (16~tJO~ );."o/)-I-
D -;e;no / Ala o~,.
LjO,OOfj
Al(J.~!!-:: 30,00 9
-V-,
7m./
•
What volume of a 3.00 M KI stock solution
"v, :: fofz
;111'" -;Ml V2
M, = 3,00
V ~
V2.
/VI,
ft1
V?, -::.O.
,fA
\~2S04?
/V,/ VI
-=
V
;v1,-= 5,0
v- -; 7
Vz..
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d /-1- 0::
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o. '2SA{
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AA7
H-=.
V,
0, DOC- L
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1~.0 g of Na2S04 dissolved in 1000.0 g of wate,r?
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AJQz SOl/
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_ D 07 ,..0
/D, Of{ ;Jqz},o,/, l/ryv I)/flzJ°'l.
{!
I
V,o: CO, U;,<1,:(o.IL)·
containing
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IV'" ::.
V?- -=- 0,/ L
11. What is the molality of a solution
/DOC),
-
I
(s.,OO
A/
I '
ftI-z.'
V
Lwould you need to prepare 100.0 mL of 0.25 M
of a 5.0 M H2S04 stock solution
AA -\/
/v'z"
{J, Z~M )(0
J
"lOOL
10. How many milliliters
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I Na \o~
)J~.z.SO~'
0
yn:o
Z
i4 2, OS~
0,07
1>10
I
OlSO,/
in the broth?
1f;7J 'o/J N {),Jj ,. J @
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[/
/'0 by
1000
(J
1rz4s~ ~
-::
01 ¥[ft AJ a (-/
[I
O,'-!r;;; »IJJ,I
x I Do ~
0, J q %
ftJ.~ Ala.tl f ~'I(),o(f brufh)
13. How much ammonium
,
chlori
.
t
I ~ ::.0(') ,
poU
12. A can of chicken broth contains 450 mg of sodium chloride in 240.0 g of broth. What is the percent
mass of sodium chloride
~CJ.()
would you use to make 0.300 L of a 1.25 M KI solution?
V,::; ?
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7)no
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(D.7t;t)-S,o;VI ~~~)
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{;I (~5:
'Ie-A Ano})
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What mass of NaOH is in 250 mL of a 3.0 M NaOH solution?
~(}/~r
9.
I
I
J _
'l
I
of CaCb?
e~(NH4CI), in grams, is needed to produce 2.5 L of a 0.5 M aqueous
07 ",0 I/~
by
(J
~y
14. According to lab procedure,
you stir 25.0 g of MgCI2 into 550 mL of water. What is the percent by mass
of MgCI2 in the solution?
S-~ m L, /
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a J-i-J)
/ M /"
% by
'r:~0!J 112.-0
~
J.ft,-O
maS! ::: ' Zb,O
tt
. x 160 -::
/Uti C/z
f- S-C-OA
~.~.!1 !'4J1~/
#. 0
15. How many grams of LiQVdreCfl 27~ g of a 15%'aq
eous solution
/;;%
O.lb (t7~~)
=-2~
X
5J
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IDO
~~:::-
l~rJO~O
tl, ']r-%
of LiCI?
{/
x~ 4/. ?,SJJ- L, -CI
16. Calculate the percent by volume of a solution
crfa'ted by adding 75 mL of acetic acid to 725 mL of
water.
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17. Calculate the molarity
275 mL of solution.
fiAo
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of a solution
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06 27<;;-" L
z: /00. OCfg//ho)
lYIaes ~lo~
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jVl--
h10
-
that contains 15.7 g of CaC03 dissolved in enough water to make
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-:::- (![
l. so/tel/oh
O. -Z7~ '-
18. What is the volume of a 3.00 M solution
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the new solution.
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- (),
_'7
.-J ,
V z. :: O. 2<5"'L
20. If you dilute 20.0 mL of a 3.5 M solution to make 100.0 mL of solution,
dilute solution?
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V,
=
5/~;tf
0.02 i.
M Z -:.:>
.
P-k',
Sf A
)
2~.
to make 250 mL of solutiJn.~~c~te
0. oa: L
V}:
v; -=- D.l L
,"pi
9'1!/;,,,/
~,66~~oJLF
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M2
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1
x : 9.703
zs 9"oL, F
1// ::
~
{O • / Mol (lito ~ ~ 0
l )lo'OilC£1lD,5
made with 122 g of LiF?
19. In the lab, you dilute 55 mL of a 4.0 M solution
)1,
(4
t,t=:-~,qL///lnoll- Jt?JJeyIMO/ ~
l-nal,'-, /h/J/1iF.
o
/?;7 /'nol
If>, 7
~O
X z: J. 0 L.
,
the molarity
of
Ai-: (4.o}/l )C9,OC;~0
({)~~C:;L)
/17, -;.-(), g e;vi
what is the molarity
of the
j1/Jz :;- (~,<;;)J1)(O,OU2
-
[0, Jt)
,)1~-:..
0 :10 ;VI
25. REVIEW QUESTION: If 2.70 g of hydrogen react with nitrogen to form ammonia, how many grams of
ammonia are formed?
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