SELECT * FROM question_mgmt as q WHERE id=3279 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=2 AND subId=9 AND chapterId=48 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 11th chemistry Equilibrium calculate the hydrogen ion concentration in the fo

Question:

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


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