Buffer Video Lessons

Concept:

# 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
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###### 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
84% (265 ratings)
###### 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