Question

A buffer solution must contain: Select one: a relatively high amount of both an acid and its conjugate base dissolved in water a relatively high amount of the conjugate base dissolved in water a solution that is at pH 7 a relatively high amount of a weak acid dissolved in water a solution that does not contain water

Answer 1

A buffer solution must contain relatively high amount of both an acid and its conjugate base dissolved in water.

What is a   Buffer Solution?

A  buffer solutrion is a soltion that contains appreciable amounts of a

• A mixture of a weak acid and its conjugate base
• A mixture of a weak base and its conjugate acid
• weak conjugate acid-base pair

Buffer solutions resist any small  change in pH when small amounts of a strong acid or a strong base are added

Examples of a buffer solution is

• The solution of acetic acid and sodium acetate (CH3COOH + CH3COONa),this contains a weak acid and its salt.

• The solution of ammonia and ammonium chloride (NH3(aq) + NH4Cl(aq), This contains a weak base and its salt.

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