Glassroom Activity Chapter 16 Number
4
13 March 2017
5.
1. What is the molar solubility of barium sulfate in
Purewater? Given Ksp = 1.1 ¡ 19-10
It Bag+ Ðß^+" + fo.Í¿
EAfi
*
i *;1r!,5
(a) Adding equal
AgNO3.
,lrf
!î,fåi o
tlr¡ =fß^*'J tr,¿É'l =
-f
r-
toút) = Itî:xtû-to
,+i.f:; Erwlr €("
h0:1,
&¡
Qr¡Þ
6
.rlnrÊ'fr
IM
x I O-14
¿3)€ê* 6^ +2Q
& ff r /*
/to
I
/¿o
' ôuCl2.'
Freþ^b4)) =
A
T
K=P
e
L
E
(b) Cus(PO+)z
ueþo+V t à
(c)
3
C^+e
¡¿
+¿
AsCl
ha ¿ t+
+c¿
"
C¡l
ê-
ffi
Kry
e
vc
2E
èÊ
ta
L
4'7 x
tú6
grfr
kp'{a
A,'rt C:cmP+r0
bo1l^. h<vë U
--
z
Pu Êa ts
X=/,0
lotf'.
c
Ft+ =
u,
tss,o
CNF¿ KÞ
/1¿-J-
r
ß:
6col è
I
lo¿
o
E
ds¿
@
ltè
Esf
A, +
--ú1"*)
tCoi) = o,oro*,
> 2,O yl
7. What is the molar
Mg
)z rna
solution with a pH of 12.00? Ksp for Mg(OH)2 is
5.6 x 10-12.
A. 5.6 x 'lQ-10 Y
@usxx 1o-B M
10-6 M
D.r1.1 x 10-4 M
A P\ (gHþ
T AfI
è- r!t** ¿,ol+;
+zy
x& ltàXl0
é
€
Ëp a 5rôr.
to-
f"
= &>(
.4t'
*tf)-
8. Calculate the Ksp for silver sulfite if the solubility
of Ag2SO3 in pure water is 4.6 x 1Q-3 g/L.
A. 3.8 x 'lQ-15
te-1,4
,r I,ly -r @t.sx
2, 6 0
x
{Q-10
C.2.4
-l I
3 I v t0
x= L,lxt -l D 4.8, ,IHç,
r^cS
¿.
o
F
o,0îo
I
C.2.4
tt .J
nnøfp sol*þle-
''r
nitrate?
r'yh4
à^^ol
(b) BaCOg or CaF2
À^
\) tl r¡P¡
þ¿*"/
¿
5
2
l0 A
4. \Â/hich member of each pair has the greater molar
solubility? As always, whenever a box is provided,
explain your reasoning or show your work. Look
rtextbook, page A-15.
up Ksp tn
(a) P bl2 or PbBr2
L
6. W¡ll a precipitate form if 0.0010 mol solid sodium
carbonate is stirred into a 250 mL solution of 0.050 {
C^"CQ3 Ks¡ z .í O lclê
M calcium
=Ll
"¿*þn?
E) /e¡lt: +f . 4,7:x1
e.p shrf*s
¡)o f{ - w*¡fh61
0d+-trì
Kf *lfulta']
Co*'¡ Z ott"
I
c
drp >
t, b
(c) Adding equalvolumes of 1 M NHaCland 1 M KBr
a
3. What is the [OH-] and pH of a saturated solution
of calcium hydroxide? Given Ksp = 4.7 x 10-6
&
L tbr'w ¡pf
(b) Addino eoualvolumes of 1 M NaOH and
(a) Pbl2
È-Pfèt?
volumesoflMNaClandlM
hïnr¿J*
C
2. Write the equilibrium expression along with the
appropriate arrows for each of the following
sparingly soluble salts and then write the Ksp
expression for the equilibrium.
Fbr¿rr
\Mich of the following activities will produce a
precipitate? Write either "No ppt" or write the
formula of the precipitate predicted. Consult the
table of K.o values in your textbook, page A-15.
Yl
,c
tl;
r
í,uni t'-r
*
rrúß10
r4
,
ÉrÊ"4
rÐ
=
t.Sx)Ö