已知:Kb=4.74
1)计算混合后生成氯化铵的浓度:
[NH4+]=0.20*50/(50+50)=0.10mol/L
2)计算混合后剩余氨水的浓度:
[NH3]=(0.40*50-0.20*50)/(50+50)=0.10mol/L
3)计算混合后溶液PH值:
PH=PKw-PKb+lg[NH3]/[NH4+]=14-4.74-lg0.10/0.10=9.26
已知:Kb=4.74
1)计算混合后生成氯化铵的浓度:
[NH4+]=0.20*50/(50+50)=0.10mol/L
2)计算混合后剩余氨水的浓度:
[NH3]=(0.40*50-0.20*50)/(50+50)=0.10mol/L
3)计算混合后溶液PH值:
PH=PKw-PKb+lg[NH3]/[NH4+]=14-4.74-lg0.10/0.10=9.26