PLS HELP ME SOLVE THIS
The pH level, P, of a liquid can be determined from the hydronium ion (H3O+) concentration, c, using the equation P = –log(c). If the pH level of grape juice is 3.3, what is the hydronium ion concentration?

A. 5.01 x 10^–4
B. 1.19 x 10^–2
C. 1.99 x 10^3
D. 1.53 x 10^5

Respuesta :

Logarithm involves the use of exponents to represent numbers.

If the pH level of grape juice is 3.3, the hydronium ion concentration is [tex]5.01 \times 10^{-4[/tex]

Given that:

[tex]P = -\log(c)[/tex]

To calculate c when [tex]P = 3.3[/tex]

We first substitute 3.3 for P in [tex]P = -\log(c)[/tex]

So, we have:

[tex]3.3 = -\log(c)[/tex]

Divide both sides by -1

[tex]-3.3 = \log(c)[/tex]

Apply law of logarithm

[tex]10^{-3.3)} = c[/tex]

Rewrite as:

[tex]c = 10^{-3.3}[/tex]

Using a calculator, we have:

[tex]c = 0.000501[/tex]

Rewrite as

[tex]c = 5.01 \times 10^{-4[/tex]

Hence, the hydronium ion concentration is [tex]5.01 \times 10^{-4[/tex]

Read more about logarithms at:

https://brainly.com/question/8657113