Answer to 2F.
V CN-
[CN-]
V.H3O
[H3O+]
VT
[HCN]
(25/40)*3
=1.875
25
15
(15/40)*5
=1.875
40mL
0
Start
-1.875
-1.875
+1.875
Rxt LR
0
0
1.875
remain