Answer:
Step-by-step explanation:
To find the concentration of hydroxide ions ([OH-]) in an aqueous solution, we can use the relationship between hydrogen ion concentration ([H+]) and hydroxide ion concentration in water at 25 °C, which is given by the equation:
[H+] x [OH-] = 1.0 x 10^-14
Given that the hydrogen ion concentration ([H+]) is 5.7 x 10^-10 (derived from the H* concentration provided), we can rearrange the equation to solve for [OH-]:
[OH-] = (1.0 x 10^-14) / [H+]
[OH-] = (1.0 x 10^-14) / (5.7 x 10^-10)
[OH-] ≈ 1.754 x 10^-5
Therefore, the concentration of hydroxide ions ([OH-]) in the given aqueous solution is approximately 1.754 x 10^-5.