Final answer:
To find the hydronium ion concentration of a soda with a pH of 2.3, take the antilog of -2.3, which results in a hydronium concentration of 5.01 × 10^-3 M.
Step-by-step explanation:
To calculate the hydronium ion concentration of a soda with a pH level of 2.3, we use the following equation:
pH = -log[H3O+]
Given that pH = 2.3, we need to find the antilog (inverse log) of the negative pH value to determine [H3O+], which is the hydronium ion concentration.
[H3O+] = 10-pH = 10-2.3
When we calculate this, we find that the hydronium ion concentration is:
[H3O+] = 5.01 × 10-3 M
This value indicates that the soda is quite acidic, as pH values below 7 denote acidity.