- can dissociate into hydronium (H3O+) and hydroxide ions (OH–)

- of a substance is a function of the proton concentration (or H3O+ concentration) of the substance. The following equation is used to determine pH: pH = -log [H+].

- a proton (H+) donor. Acids increase the proton concentration of a solution, lowering the pH.

- a proton acceptor. Bases lower the proton concentration of a solution, increasing the pH.

- a unit in chemistry that is equal to a certain number of molecules. Just as a dozen is 12 items, a mole is 6.023 x 1023 molecules

A base is a substance that

- increases the pH of a solution.

An acid is a substance that

- donates protons to a solution.

If a solution has a pH of 9, then

- it contains 1 × 10−9 moles of hydronium per liter.

2.3.4 Dissociation of Water and the pH Scale Flashcards by Irina Soloshenko

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2.3.4 Dissociation of Water and the pH Scale Flashcards

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