CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

The first and second dissociation constant of an acid H2A are 1.0×105 and 5.0×1010 respectively. The overall dissociation constant of the acid will be:
 


A
5.0×105
loader
B
5.0×1015
loader
C
5.0×1015
loader
D
0.2×105
loader

Solution

The correct option is D 5.0×1015
H2AHA+H+K1=1.0×105=[H+][HA][H2A] HAH++A2K2=5.0×1010=[H+][A2][HA]
Overall dissociation constant K=[H+]2[A2][H2A]=K1×K2
K1×K2=1.0×105×5.0×1010
K=K1×K2=5.0×1015

Chemistry

Suggest Corrections
thumbs-up
 
0


similar_icon
Similar questions
View More


similar_icon
People also searched for
View More



footer-image