The Total solution for NCERT class 6-12
Calculatethe hydrogen ion concentration in the following biological fluids whose pH aregiven below:
(a)Human muscle-fluid, 6.83
(b)Human stomach fluid, 1.2
(c)Human blood, 7.38
(d)Human saliva, 6.4.
(a) Human musclefluid 6.83:
pH= 6.83
pH = – log [H+]
∴6.83 = – log [H+]
[H+] =1.48 × 10–7 M
(b) Human stomachfluid, 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 × 10–8 M
(d) Human saliva,6.4:
pH= 6.4
6.4 = – log [H+]
[H+] = 3.98 × 10–7