Question:
The pH of milk, black coffee, tomato juice, lemon juice and egg white are 6.8, 5.0, 4.2, 2.2 and 7.8 respectively. Calculate corresponding hydrogen ion concentration in each.
Answer:
The hydrogen ion concentration in the given substances can be calculated by using the given relation:
pH = -log [
]
(i) pH of milk = 6.8
Since, pH = -log []
6.8 = -log []
log [] = -6.8
[] = anitlog(-6.8)
= 
(ii) pH of black coffee = 5.0
Since, pH = -log [
]
5.0 = -log []
log [] = -5.0
[] = anitlog(-5.0)
= 
(iii) pH of tomato juice = 4.2
Since, pH = -log []
4.2 = -log []
log [] = -4.2
[] = anitlog(-4.2)
= 
(iv) pH of lemon juice = 2.2
Since, pH = -log []
2.2 = -log []
log [] = -2.2
[] = anitlog(-2.2)
= 
(v) pH of egg white = 7.8
Since, pH = -log []
7.8 = -log []
log [] = -7.8
[] = anitlog(-7.8)
= 
Not what you are looking for? Go ahead and submit the question, we will get back to you.
