Problem: Which of the following aqueous solutions are good buffer systems? [YOU CAN PICK MORE THAN ONE]0.19 M barium hydroxide + 0.29 M barium bromide0.28 M hydrobromic acid + 0.21 M potassium bromide0.39 M potassium perchlorate + 0.24 M barium perchlorate0.18 M nitrous acid + 0.13 M sodium nitrite0.30 M ammonia + 0.39 M sodium hydroxide

FREE Expert Solution

Establish the proper buffer pairs and analyze each choice if they are possible buffer pair


Step 1. Recall that buffers resist drastic changes to the pH if a strong acid or strong base is added.

A buffer is a solution that can be made up of:

  • weak base and its conjugate acid
  • weak acid and its conjugate base
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Problem Details

Which of the following aqueous solutions are good buffer systems? [YOU CAN PICK MORE THAN ONE]

0.19 M barium hydroxide + 0.29 M barium bromide

0.28 M hydrobromic acid + 0.21 M potassium bromide

0.39 M potassium perchlorate + 0.24 M barium perchlorate

0.18 M nitrous acid + 0.13 M sodium nitrite

0.30 M ammonia + 0.39 M sodium hydroxide

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