滴加氨水后形成缓冲溶液,则有
7=PKb-lg[NH3·H2O]/[NH4+]
7=4.75-lg[NH3·H2O]/[NH4+]
lg[NH3·H2O]/[NH4+]=-2.25
[NH3·H2O]/[NH4+]=0.005623/1=1/178
即氨水的物质的量是硝酸铵的a/178,氨水的浓度是a178b.
滴加氨水后形成缓冲溶液,则有
7=PKb-lg[NH3·H2O]/[NH4+]
7=4.75-lg[NH3·H2O]/[NH4+]
lg[NH3·H2O]/[NH4+]=-2.25
[NH3·H2O]/[NH4+]=0.005623/1=1/178
即氨水的物质的量是硝酸铵的a/178,氨水的浓度是a178b.