The pH of lemon juice is 2, and the pH of orange juice is 4. Which of these is more acidic, and by how much? What does this mean?

The pH is a 1 to 14 scale that measures how acidic or basic is a solution, at lowest number the solution will be acid, in 7 the solution will be neutral, and in higher values will be basic. It is a logarithmic scale, so with each number you move, the acidity or basicity will be increased by a factor of 10. So, lemon juice is more acidic than orange juice by a factor of 100.

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Oseni Oseni · Answer 2 · 2021-11-03T13:48:43+01:00

Lemon juice with pH 2 is more acidic than orange juice with pH 4.

The pH is a measure of the acidity or alkalinity of a substance. A pH of 7 is said to be neutral. The lower the pH from 7, the more the acidity, and the higher the pH from 7, the more the basicity.

Hence, pH of 2 and 4 are both acidic but 2 is more acidic than 4.

The pH of a substance also refers to the negative log to base 10 of the hydrogen ion concentration of the substance. In other words:

pH = - [tex]log_1_0 [H^+][/tex]

For pH 2:

2 = -log10 [H+]

[H+] = 0.01 M

For pH 4:

4 = -log10 [H+]

[H+] = 0.0001 M

Thus, the hydrogen ion concentration of lemon juice is 100 times that of orange juice.

More on pH can be found here: https://brainly.com/question/491373