What are the concentrations of h3o+ and in oranges that have a ph of 3.69?

[H+] = 2.04 *10^-4 M

[OH-] = 4.90*10^-11 M

Explanation:

Step 1: Data given

pH = 3.69

Step 2: Calculate [H3O+]

pH = 3.69 = -log [H+] = -log [H3O+]

[H+] = [H3O+] = 10^-3.69 = 2.04 *10^-4 M

Step 3: Calculate pOH

pH + pOH = 14

pOH = 14 - 3.69 = 10.31

Step 4: Calculate [OH-]

pOH = 10.31 = -log [OH-]

[OH-] = 10^-10.31 = 4.90*10^-11 M

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