cava chem 303 s2d30 3.04 Measuring Acids and Bases
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
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| In an aqueous solution, the product of the concentration of hydrogen ions and the concentration of hydroxide ions is always equal to 1.0 × 10^([...]) M. | In an aqueous solution, the product of the concentration of hydrogen ions and the concentration of hydroxide ions is always equal to 1.0 × 10^(-14) M.
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| the concentrations of H+ ions and OH- ions are each is 1 × 10^([...]) M in a neutral solution. | the concentrations of H+ ions and OH- ions are each is 1 × 10^(-7) M in a neutral solution.
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| If the concentration of H+ is then [...] than 1 × 10^(-7) M, the solution is acidic. | If the concentration of H+ is then greater than 1 × 10^(-7) M, the solution is acidic.
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| If the concentration of H+ is then [...] than 1 × 10^(-7) M, the solution is basic. | If the concentration of H+ is then less than 1 × 10^(-7) M, the solution is basic.
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| another word for 'basic' (as opposed to acidic) is '[...]'. | another word for 'basic' (as opposed to acidic) is 'alkaline'.
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| The pH of a solution is based on a measurement of the concentration of [...] ions. | The pH of a solution is based on a measurement of the concentration of hydrogen ions.
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| pH is the negative [... of the concentration of hydrogen ions, [H+]. | pH is the negative log of the concentration of hydrogen ions, [H+].
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| Square brackets around something in chemistry mean 'the [...] of whatever is in the square brackets'. | Square brackets around something in chemistry mean 'the concentration of whatever is in the square brackets'.
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| [H+] is the way we write the *[...]* of hydrogen ions H+. | [H+] is the way we write the *concentration* of hydrogen ions H+.
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| pH = [mathematical formula] | pH = –log[H+]
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| Neutral solutions have a pH of [...]. | Neutral solutions have a pH of 7.
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| In "PEE-EYTCH", the letter P is [...]-case and the H is [...]-case. | In "PEE-EYTCH", the letter P is lower-case and the H is upper-case.
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| Acidic solutions have a pH [...] than 7 | Acidic solutions have a pH lower than 7
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| Basic solutions have a pH [...] than 7 | Basic solutions have a pH higher than 7
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