Question

ph of sample of a lemon juice is 5.4 what will be the concentration of hydrogen ions in it​

Answer 1

Answer:

Calculating the pH of lemon juice using its hydrogen ion concentration, pH = −log [H+] = − log [5.4 × 10−3] ≈ 2.27 or 2.3.

Answer 2

Given,

The pH of lemon juice is 5.4

To Find,

The concentration of hydrogen ions in lemon juice.

Solution,

The formula for calculating the pH of a substance is

pH = -log[H+]

where [H+] is the concentration of hydrogen ions.

So,

pH = 5.4

5.4 = -log[H+]

[H+] = antilog(-5.4)

[H+] = 3.98×10⁻⁶

Hence, the concentration of hydrogen ions is 3.98×10⁻⁶.