n4ix - msturriff

Transcription

n4ix - msturriff
Name:
EST- 4
\/
Practice
Concentration of Solutions
t' *yi':ily:fT[L'-1?fl:'t is r]*"s3q,\.,u.rt Ln eL
& s..-0-f Q) s-^+#'
2' *f[-ffiI"#:fj"-'H5,
lt*
r.drsi.,[-,dj4
de*-=
U
(L-\ ,., {*r'4, r:1€.r\ 1a-,^-)
3.
List 4 units in which we EIn express the c5ncentration of a solution?
4.
GJ "rns'l / [email protected]
List two ways to decrease the concentration of a solution.
5.
\-
(i *..-+."'
(D Sr rnlo
t "eotvo^t*
.t so i.-l,a*
Youaremakingyourselfaglassof icedtea. Youadd3gof powderto250ml ofwater. Whatis
the concentration of your iced tea in g/L, %, ppm?
25Or,*t
l4.rC-)
25O 14
\-
;L"1
J
[t ,]q
'-J
n *--)
''.r--{
---2
l'Z "t /t*
_)
11*^;1
L:',/-
@
12* OC'rC) q
)
You need to make 250 ml of a 15 g/L solution. Describe the steps you would take and show the
calculations to support your method.
./--\
6
**a
r-r-l
($ "35-* i .rq
I OOA Ccri,r
0,
(,n a *c,[.*{'*")
@ pfi,,''
3q
. **I3*
1p
' i*r'j
iooo,.,.t
(D . -.1gi , o, _x3
6.
"'i..-:h'"t
Ce.-l c
F4
u.,1*b
*=s
3. *S
cL yt^* c,
-.,,.-* d €
,i o[
so
[.r-ta"
a'€
€--6{'-a-ct
'
s.'[.-"t
C*'?*f sol"ftl 'r,. d* ZS13 ,*[ vc,[o,,*o]'r- {t,.t[
C* fitl ft...L ho-i {-*r,*\ *f b*q=b *.4fi .^,J.a
& S*,,rt .,.^i-,t t[.o- s.L'dfi,: La cl*s"'t'"/{'^-- .L'
d;, A,t l ,-.--[ctr --t, +* +t* Zlb,*-(
'
&
n4ix
I
,\
7.
calculate the mass of solute (g) needed to make the following solutions:
a)
100 ml of a 3 % solution
X
ot,
ioo,J-
itlO,-n-t
300 ml of 47 g/L solution
b)
{?q
:-5
tt:r:o,r*0
c)
3Cfr,wQ
150 ml of a 1450 ppm solution
lqsoE
d)
I 6C;o oc;o J
I 5(),,^-0
275 ml of a 75% solution
iDe
e)
O,r),t73
fe
',.*t
"Y3
L+; ,",)
"4
500 ml of an 18 g/L solution
i<>c)o,J =pa,J
What would
the concentration in g/L of
be
sa
-a Lr%l
}J
a solution if 500m1 of this solution contains 2g
- It
sDCI,J
i oc;a "*-{)
-a b-+
re
What is the percent concentration of a solution if 50g of solute was used to make 3L of the
solution?
5?
$AOC),-'t\
iOCl
-
e 1,(o?3 -,
n,,r*-0
10. How much solute is required to prepare 2L of a 5% solution ?
_3:
ioo.*-Q
11-.
of
lt?
J"t
9.
Tt,2Sg
- Y9
ZrcrJ
f.-1
1",?*:
t
Howmuchsolutionwill bepreparedif40gof sugarareusedtomakean8%solution?
ICC
J
,q
X no-l
5Cn
,"ul
J
12. Which oithe following has the highest concentration? Show your work.
(d)tuN
/.-
B:?"t
)
b) 150 g/L-c) 375 ppm \
*
-'F
i(j()'.tr
t$Oq
\
i,rcroo*S
I
*>
5
oLtr c(cr
Yc_t__
) ooc) cr'o
3
tc; oc:<) pp,r^
"J
154 oau rf "^
rJ
13. Rank the following in increasing order of concentration. Show your work.
a) L4%
b) 32 e/L
c)
xg
I()O
1200 ppm
'rarJ
I OC.|C) C)(
t,,.0
--? l4o
o{>o (re.,,
3,Zq
ioe,c';.9
x4\
I tsctct
ctcu*-0
-a
ZZ
oo$fffi
l-4. Convert the following units to ppm
a)
8.7s%
b)
Le elL
%,7eo
i
i(X)"+O
t{a
I oOC;
lo(}C)"J
a) a2s elL
b)
*
oc,o r:cc,
c,c{..,
vfr
%
kd!
ZSca
'
ta2c-,O,J-
ioo "JL
V6\
I OOcs octO
J
63%
xc1
tooo {*Q
("3s
i
OC:."J,.-0
b,
a"LZY--)
IOO':x9
l-6. Convert the following units Io glL
b)
*r3
225 ppm
L2Sq
a)
J
Xq
l,
15. Convert the following units to
. x3
**fr "+
1576 ppm
xS
I S+foo
bCO
e;c.D
ru9
laOO -*0
-? l,s?G, g
O,CL"/"