A buffer solution contains 0.2mole of NH_4 OHand 0.2 mole of NH_4 Cl perlitre. The PK_bofNH_4 OHis 4.75 The pH of the buffer will be

A buffer solution contains 0.2mole of NH_4 OHand 0.2 mole of NH_4 Cl p

1.	A buffer solution contains 0.2mole of NH_4 OHand 0.2 mole of NH_4 Cl perlitre. The PK_bofNH_4 OHis 4.75 The pH of the buffer will be
Answer» `4.75` ` 5.75` `9.25` `2.25` Solution :` pOH =pK_b +LOG "" ([S])/([B])=4.75 +log ""(0.2)/(0.2) = 4.75` `rArr PH = 14 -4.75 =9.25`