9. Which of these statements about water is(are) incorrect? A. It has a pH of 7.0 at ambient temperatures. B. It contains no ions. C. It is neutral. D. It can act as a proton donor.
The pH of water at room temperature of 298 K is generally. It means that the concentration of hydrogen ions in the water is equal to the concentration of hydroxide ions present in water. The first statement is true.
Water contains small amount of hydrogen ions and small amount of hydroxide ions. The concentration of hydrogen ions is equal to the concentration of the hydroxide ions. The second statement is false.
Water is considered neutral because the concentration of hydrogen ions is equal to the concentration of hydroxide ions. The third statement is also true.
Water acts as a proton donor when it reacts with a base and it acts as a proton acceptor when it reacts with the acid. The fourth and fifth statements are true.
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