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pH and buffers
21問 • 3ヶ月前
  • HERSHEY VALERIE BERNARDINO
    • 通報

    問題一覧

  • 1

    acidity constant that expresses the ionization of acids

    Ka and pKa

  • 2

    base constant that expresses the ionization of bases

    Kb and pKb

  • 3

    compounds or mixtures of compounds that by their presence in a solution, resist changes in pH upon the addition of small quantities of acid or alkali.

    buffers

  • 4

    A weak acid and its conjugate base

    salt of acid

  • 5

    A weak base and its conjugate acid

    salt of base

  • 6

    acetic acid and sodium acetate

    salt of acid

  • 7

    ammonium hydroxide ammonium chloride

    salt of base

  • 8

    acidic buffer

    WA + CB

  • 9

    basic buffer

    WB + CA

  • 10

    buffer action is also known as the buffer effect

    true

  • 11

    Aka buffer effect, buffer capacity, buffer index, buffer efficiency, or buffer value

    buffer action

  • 12

    The magnitude of resistance of a buffer to pH changes.

    buffer action

  • 13

    aka Buffer Capacity Equation

    Koppel-Spiro-Van Slykes equation

  • 14

    Maximum buffer capacity is Bmax = 0.576 C

    true

  • 15

    is the point at which a buffer solution can neutralize the highest amount of added strong acid or base with minimal change in pH.

    maximum buffer capacity

  • 16

    This typically occurs when the concentrations of the weak acid and its conjugate base (or weak base and its conjugate acid) are equal

    maximum buffer capacity

  • 17

    the pH of the buffer equals the pKa of the weak acid.

    maximum buffer capacity

  • 18

    Occurs when [acid] = [conjugate base]

    maximum buffer capacity

  • 19

    Buffer capacity ___ with higher absolute concentrations of the buffer components.

    increases

  • 20

    are a combination of weak acid + conjugate base (as its salt) or weak base + conjugate acid (as its salt)

    buffers

  • 21

    Buffer equation

    Henderson-Hasselbalch equation

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    問題一覧

  • 1

    acidity constant that expresses the ionization of acids

    Ka and pKa

  • 2

    base constant that expresses the ionization of bases

    Kb and pKb

  • 3

    compounds or mixtures of compounds that by their presence in a solution, resist changes in pH upon the addition of small quantities of acid or alkali.

    buffers

  • 4

    A weak acid and its conjugate base

    salt of acid

  • 5

    A weak base and its conjugate acid

    salt of base

  • 6

    acetic acid and sodium acetate

    salt of acid

  • 7

    ammonium hydroxide ammonium chloride

    salt of base

  • 8

    acidic buffer

    WA + CB

  • 9

    basic buffer

    WB + CA

  • 10

    buffer action is also known as the buffer effect

    true

  • 11

    Aka buffer effect, buffer capacity, buffer index, buffer efficiency, or buffer value

    buffer action

  • 12

    The magnitude of resistance of a buffer to pH changes.

    buffer action

  • 13

    aka Buffer Capacity Equation

    Koppel-Spiro-Van Slykes equation

  • 14

    Maximum buffer capacity is Bmax = 0.576 C

    true

  • 15

    is the point at which a buffer solution can neutralize the highest amount of added strong acid or base with minimal change in pH.

    maximum buffer capacity

  • 16

    This typically occurs when the concentrations of the weak acid and its conjugate base (or weak base and its conjugate acid) are equal

    maximum buffer capacity

  • 17

    the pH of the buffer equals the pKa of the weak acid.

    maximum buffer capacity

  • 18

    Occurs when [acid] = [conjugate base]

    maximum buffer capacity

  • 19

    Buffer capacity ___ with higher absolute concentrations of the buffer components.

    increases

  • 20

    are a combination of weak acid + conjugate base (as its salt) or weak base + conjugate acid (as its salt)

    buffers

  • 21

    Buffer equation

    Henderson-Hasselbalch equation