Acids, Bases, Salts & Buffers

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Quiz on salt hydrolysis and buffers

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AINA MARDZIAH AHMAD RIFA’I

Malasia

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Froggy Jumps Acids, Bases, Salts & BuffersVersión en línea Quiz on salt hydrolysis and buffers por AINA MARDZIAH AHMAD RIFA’I 1 What is salt hydrolysis in aqueous solution? a Salt dissolves without any reaction b Salt remains completely neutral in water c Salt reacts with water to form acidic or basic solution 2 In a buffered solution, what is the role of the weak acid–conjugate base pair? a It raises the temperature of the solution b It precipitates the ions present c It resists pH changes by neutralizing added acid or base 3 Which statement describes a buffer solution best? a It contains only strong bases b It contains only strong acids c It contains a weak acid and its conjugate base in appreciable amounts 4 Which salt hydrolysis would yield a basic solution? a Salt of a strong acid with a weak base b Salt of a weak acid with a strong base c Salt of a strong acid with a strong base 5 Which salt hydrolysis would yield an acidic solution? a Salt of a strong acid with a strong base b Salt of a weak base with a strong acid c Salt of a strong base with a weak acid 6 Henderson–Hasselbalch equation relates pH to? a pH = pKb + log([B+]/[BOH]) b pH = log([H+]/[OH−]) c pH = pKa + log([A−]/[HA]) 7 A buffer made from acetic acid and sodium acetate mainly resists pH changes upon? a Increasing temperature by 50°C b Addition of water only c Addition of small amounts of strong acid or base 8 Which change would increase buffer capacity? a Increasing both conjugate base and weak acid concentrations equally b Using only the weak acid c Using only the conjugate base 9 What happens when a strong acid is added to a buffer containing acetic acid and acetate? a Salt precipitates out of solution b Most H+ ions are consumed by acetate to form acetic acid c pH drops drastically due to free H+ 10 Which is true about salt hydrolysis of NaF in water? a F− hydrolyzes to make the solution slightly basic b Neither ion hydrolyzes; solution is neutral c NaF hydrolyzes to make it acidic

Froggy Jumps

Acids, Bases, Salts & BuffersVersión en línea

Quiz on salt hydrolysis and buffers

por AINA MARDZIAH AHMAD RIFA’I

What is salt hydrolysis in aqueous solution?

Salt dissolves without any reaction

Salt remains completely neutral in water

Salt reacts with water to form acidic or basic solution

In a buffered solution, what is the role of the weak acid–conjugate base pair?

It raises the temperature of the solution

It precipitates the ions present

It resists pH changes by neutralizing added acid or base

Which statement describes a buffer solution best?

It contains only strong bases

It contains only strong acids

It contains a weak acid and its conjugate base in appreciable amounts

Which salt hydrolysis would yield a basic solution?

Salt of a strong acid with a weak base

Salt of a weak acid with a strong base

Salt of a strong acid with a strong base

Which salt hydrolysis would yield an acidic solution?

Salt of a strong acid with a strong base

Salt of a weak base with a strong acid

Salt of a strong base with a weak acid

Henderson–Hasselbalch equation relates pH to?

pH = pKb + log([B+]/[BOH])

pH = log([H+]/[OH−])

pH = pKa + log([A−]/[HA])

A buffer made from acetic acid and sodium acetate mainly resists pH changes upon?

Increasing temperature by 50°C

Addition of water only

Addition of small amounts of strong acid or base

Which change would increase buffer capacity?

Increasing both conjugate base and weak acid concentrations equally

Using only the weak acid

Using only the conjugate base

What happens when a strong acid is added to a buffer containing acetic acid and acetate?

Salt precipitates out of solution

Most H+ ions are consumed by acetate to form acetic acid

pH drops drastically due to free H+

Which is true about salt hydrolysis of NaF in water?

F− hydrolyzes to make the solution slightly basic

Neither ion hydrolyzes; solution is neutral

NaF hydrolyzes to make it acidic

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Acids, Bases, Salts & Buffers

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Acids, Bases, Salts & BuffersVersión en línea

por AINA MARDZIAH AHMAD RIFA’I

What is salt hydrolysis in aqueous solution?

In a buffered solution, what is the role of the weak acid–conjugate base pair?

Which statement describes a buffer solution best?

Which salt hydrolysis would yield a basic solution?

Which salt hydrolysis would yield an acidic solution?

Henderson–Hasselbalch equation relates pH to?

A buffer made from acetic acid and sodium acetate mainly resists pH changes upon?

Which change would increase buffer capacity?

What happens when a strong acid is added to a buffer containing acetic acid and acetate?

Which is true about salt hydrolysis of NaF in water?

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