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# For which of the following solutions must we consider the autoionization of water when calculating the...

###### Question:

For which of the following solutions must we consider the autoionization of water when calculating the pH?

 a. 0.1 M HCl b. 0.00080 g of NaOH in 0.5 L of solution c. 3 X10-8 M HNO3 d. 0.0245 M KNO3

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