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pH
cava chem 303 s2d30 3.04 Measuring Acids and Bases
Question | Answer |
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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. |
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. |
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. |
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. |
another word for 'basic' (as opposed to acidic) is '[...]'. | another word for 'basic' (as opposed to acidic) is 'alkaline'. |
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. |
pH is the negative [... of the concentration of hydrogen ions, [H+]. | pH is the negative log of the concentration of hydrogen ions, [H+]. |
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'. |
[H+] is the way we write the *[...]* of hydrogen ions H+. | [H+] is the way we write the *concentration* of hydrogen ions H+. |
pH = [mathematical formula] | pH = –log[H+] |
Neutral solutions have a pH of [...]. | Neutral solutions have a pH of 7. |
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. |
Acidic solutions have a pH [...] than 7 | Acidic solutions have a pH lower than 7 |
Basic solutions have a pH [...] than 7 | Basic solutions have a pH higher than 7 |