Which one of the following pairs will function as a buffered solution? NaOH , Na2O NH4Cl...

Question

Question

Which one of the following pairs will function as a buffered solution?

NaOH , Na₂O

NH₄Cl , NH₃

HCl , NaOH

H₂CO₃, Na₂CO₃

science chemistry

Answer 1

Answer #1

The pair which would work as a buffer solution is,

NH4Cl, NH3

Buffer is a solution as a weak acid and its conjugate buffer or a weak base and its conjugate acid.

Here, NH3 is a weak base and its salt NH4Cl would act as a buffer.

NaOH, HCl are all strong base and acid respectively and thus fails to act as component of buffer solution.

H2CO3 is a weak acid but its conjugate base would be NaHCO3 and not Na2CO3, thus it does not act as buffer

Answer 2

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