Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Tom on June 08, 2004, 11:28:20 AM
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Which of these statements is not true of buffer solutions?
A buffer solution could consist of equal concentrations of ammonia and ammonium bromide.
A buffer solution could consist of equal concentrations of nitric acid, HNO3, and sodium nitrate.
A buffer solution will change only slightly in pH upon addition of acid or base.
In a buffer solution containing benzoic acid, C6H5COOH, and sodium benzoate, C6H5COONa, the species that reacts with added hydroxide ion is the benzoic acid.
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True: A buffer solution will change only slightly in pH upon addition of acid or base.
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A buffer solution will resist change in ph when a moderate amount of an acid or base is added to it. A buffer solution consists of a weak acid and its conjugate base, or of a weak base and its conjucate acid.