Question

The pH can be calculated using the equation pH = –log(h ), where h is the hydronium ion concentration. Find the hydronium ion concentration of a particular soda if the pH level is 2.3.

Options:
a) 4.142 x 10^3
b) 1.995 x 10^2
c) 3.617 x 10^–1
d) 5.011 x 10^–3

Answer 1

The hydronium ion concentration of a soda with pH 2.3 can be found by calculating the inverse logarithm of the pH: [H3O+] = 10^-2.3, resulting in a concentration of approximately 5.011 x 10^-3 M.

Step-by-step explanation:

The question asks for the calculation of the hydronium ion concentration, given the pH level of a soda is 2.3. To find the concentration of hydronium ions (H3O+), we need to take the inverse logarithm of the pH value.

pH = -log[H3O+], rearranging, we get [H3O+] = 10-pH. Plugging in the pH value we have: [H3O+] = 10-2.3. Using a scientific calculator, you find that the concentration of the hydronium ions is approximately 5.011 x 10-3 M.

The correct answer from the given options is therefore d) 5.011 x 10-3