Question
Chemistry Question on Law Of Chemical Equilibrium And Equilibrium Constant
Calculate the hydrogen ion concentration in the following biological fluids whose pH are given below:
(a) Human muscle-fluid,6.83
(b) Human stomach fluid,1.2
(c) Human blood,7.38
(d) Human saliva,6.4
Answer
(a) Human muscle fluid 6.83: pH = 6.83
pH = - log [H+]
∴6.83 = - log [H+]
[H+] =1.48 x 10-7 M
(b) Human stomach fluid, 1.2: pH =1.2
1.2 = - log [H+]
∴[H+] = 0.063
(c) Human blood, 7.38: pH = 7.38 = - log [H+]
∴ [H+] = 4.17 x 10-8 M
(d) Human saliva, 6.4: pH = 6.4
6.4 = - log [H+]
[H+] = 3.98 x 10-7