Answer to Question #66942 in Physical Chemistry for murahi

Question

Question 8 : The magnitude of
K
w
Kw
indicates that __________.
water autoionizes very quickly
the autoionization of water is exothermic
water autoionizes very slowly
water autoionizes only to a very small extent

Question 9 : For the following reaction, which of the following is a conjugate acid-base pair?
H
C
2
O
−
4
(
a
q
)
HC2O4−(aq)
+
H
2
O
(
l
)
H2O(l)
→
→
H
3
O
+
H3O+
(aq) +
C
2
O
2
−
4
C2O42−
(aq)

H
2
O
H2O
and
C
2
O
4
2
−
C2O42−


H
C
2
O
−
4
HC2O4−
and
H
3
O
+
H3O+


H
C
2
O
−
4
HC2O4−
and
C
2
O
2
−
4
C2O42−


H
C
2
O
−
4
HC2O4−
and
H
2
O
H2O


Question 10 : What’s the concentration of Ag+ ion in a saturated silver chloride solution?
K
s
p
Ksp
= 1.56 x
10
−
10
10−10
.
none of these
0.000339 M
0.0000125 M
4.90 M

Question 11 : A substance that is capable of acting as both an acid and as a base is _____.
conjugated
Amphoteric
Diprotic
Binary acid-base