An aqueous solution contains 0.27 M sodium nitrite. One liter of this solution could be converted...

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An aqueous solution contains 0.27 M sodium nitrite. One liter of this solution could be converted into a buffer by the additi

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Answer 1

Answer #1

There are 0.27 mol of NO2- solution

To make buffer, we need to add HNO2 solution. option 1 is correct.

we can also add acid so that only some of NO2- convert to HNO2. For this mol of acid added should be less than 0.27 mol because we dont want all of NO2- to react. SO, option 5 is correct

Answer: option 1 and 5

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Answer 2

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