17. At 0°C, the ion-product constant of water, \(K_w\), is \(1.2 \times 10^{-15}\). What is the pH of pure water at 0°C? (A)7.00 (B)6.88 (C)7.56 (D)7.46 (E)none of these

7. Which of the following solutions contains the greatest total ion concentration? (A)One mole of potassium chloride dissolved in 1.0 L of solution. (B)One mole of iron(II) nitrate dissolved in 1.0 L of solution. (C)One mole of potassium hydroxide dissolved in 1.0 L of solution. (D)One mole of sodium phosphate dissolved in 1.0 L of solution. (E)At least two of the above solutions have an equal number of ions, and these contain the greatest total ion concentration.

17. At 0°C, the ion-product constant of water, \(K_w\), is \(1.2 \times 10^{-15}\). What is the pH of pure water at 0°C?
(A)7.00
(B)6.88
(C)7.56
(D)7.46
(E)none of these

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