pH/pOH Calculations Maze 2
Begin at the box labeled START. Solve the problem by using any of the equations to
the right and show all substitutions. Your answer will lead you to the next box.
Continue through the maze until you have reached the FINISH box. Highlight,
color, shade or draw a line to show the path you took. HINT: This maze has 2
unused boxes - these will not have a correct answer coming off them. If you land
on one of these, go back and correct your previous mistake before moving on.
Acid
Neutral
[OH-]
Base
(1) (1) (1) (OH) [OH-] [OH-]
[H3O+] [H₂O*] [H₂O*]| [H¸0*] 1
pH=10.8, pOH = ?
1 x 10-7
=
[140 141
START
[H3O+] 5.5 x 10-2, pH = ?
1.4
pOH = 1.5, pH = ?
12.5
7.8
9.0
6.1
B
FINISH
N
5.0
[H3O+] = 7.94 x 10-7,
pH = ?
A
pOH = 8.6, A/B/N ?
1.3
3.0
B
2.0 x 10-3
Name:
Pd:
pH scale
pH = -log[H3O+]
[H3O+] = 10-PH
14
pH+ pOH = 14
[H3O+][OH-] 1 x 10-14
pOH = -log[OH-]
[OH-] = 10-POH
Base
Neutral 7
Acid
0
5.0 x 10-12
pOH = 1.80, [OH-] = ?
1.8 x 10-2
pH = 6.5, A/B/N?
N
pH = 11.3, [H3O+] = ?
1.6 x 10-2
7.5
A
4.4
3.4
pH=6.5, pOH = ?
3.5
[OH-] 3.7 x 10-5, pOH = ?
9.6
[H3O+] = 1.6 x 10-10, pH = ?