Use the References to access important values if needed for this question. The p

Question

Use the References to access important values if needed for this question. The pH scale was designed to make it convenient to express hydrogen ion concentrations that are small in aqueous solutions. The definiton of pH is in terms of base 10 logarithms. pH -logH] where Ht] is the hydrogen ion concentration. a. If the hydrogen ion concentration in a solution is 3.00 × 10-3 mol/L, the pH is b. If the pH of a solution is 3.018, the hydrogen ion concentration is moVL Submit Answer Retry Entire Group 9 more group attempts remaining

Explanation / Answer

a)
[H+] = 3.00*10^-3 mol/L
use:
pH = -log [H+]
= -log (3.00*10^-3)
= 2.523
Answer: 2.523

b)
pH = 3.018

use:
pH = -log [H+]
3.018 = -log [H+]
[H+] = 9.59*10^-4 mol/L
Answer: 9.59*10^-4 mol/L

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