Question

Are the following solutions acidic, basic, or neutral?

a) [H+] = 1.0 x 105
b) [H+] = 3.0 x 107
c) [H+] = 2.8 x 1011
d) [H+] = 1.9 x 102
e) pH = 4.6
f) pH = 8.9
g) [H+] = 5.9 x 105
h) [H+] = 5.0 x 108

Answer 1

a) [H+] = 1.0 x 10^5

This solution is acidic because it has a greater concentration of hydronium ions than hydroxide ions.

b) [H+] = 3.0 x 10^7

This solution is acidic because it has a greater concentration of hydronium ions than hydroxide ions.

c) [H+] = 2.8 x 10^11

This solution is acidic because it has a greater concentration of hydronium ions than hydroxide ions.

d) [H+] = 1.9 x 10^2

This solution is acidic because it has a greater concentration of hydronium ions than hydroxide ions.

e) pH = 4.6

This solution is acidic because its pH is below 7.

f) pH = 8.9

This solution is basic because its pH is above 7.

g) [H+] = 5.9 x 10^5

This solution is acidic because it has a greater concentration of hydronium ions than hydroxide ions.

h) [H+] = 5.0 x 10^8

This solution is acidic because it has a greater concentration of hydronium ions than hydroxide ions.