Answer:
1. [H+] = 1 x 10^-4mol/L
2. [OH-] = 1 x 10^-10mol/L
Explanation:
1. From the question given, the pH is 4.0. We can obtain the value of the value of the hydrogen ion concentration [H+] as follows:
pH = —Log[H+]
4 = —Log[H+]
—4 = Log[H+]
Anti-log of —4
[H+] = 1 x 10^-4mol/L
2. Recall: [H+] x [OH-] = 1 x 10^-14
But [H+] = 1 x 10^-4mol/L
1 x 10^-4 x [OH-] = 1 x 10^-14
Divide both side by 1 x 10^-4mol/L
[OH-] = 1 x 10^-14/1 x 10^-4
[OH-] = 1 x 10^-10mol/L
Answer:
the narrator and the newsies
<span>Rusting of iron is one form of oxidation. Whether a substance oxidizes or corrodes describes a chemical property of matter.
HOPE THIS HELPS! ^_^</span>
To compute the percent error, you divide the absolute difference between the actual value and the measured value with the actual value. Then, multiply it with 100 to get the percentage. The solution is as follows:
Percent error = (250 - 243.9)/250 * 100
Percent error = 2.44%
