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

`1.5xx10^(-7)M, 10^(-5)M, 6.31xx10^(-5)M, 6.31xx10^(-5) M, 6.31xx10^(-3)M, 1.58xx10^(-8)M`

Explanation

(a) `log [H^(+)]=-pH = - 6.83 = bar(7).17 :. [H^(+)] = "Antilog" bar(7).17 = 1.479 xx 10^(-7)M`
(b) ` log [H^(+)]=-pH =-1.2=bar(2).8 :. [H^(+)]= "Antilog" bar(2).8 = 6.31xx10^(-2)M`
(c) `log[H^(+)] =- log = - 7.38 =bar(8).62 :. [H^(+)] = "Antilog" bar(8).62= 4.169xx106(-8)M`
(d) `log [H^(+)]=-pH = - pH = - 6.4 = bar(7).60 :. [H^(+)]= "Antilog" bar(7).60=3.981xx10^(-7)M`