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`.

Explanation

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