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 [H⁺]

(i) pH of milk = 6.8

Since, pH = -log [H⁺]

6.8 = -log [H⁺]

log [H⁺] = -6.8

[H⁺] = anitlog(-6.8)

= 1.5x10-7M

(ii) pH of black coffee = 5.0

Since, pH = -log [H⁺]

5.0 = -log [H⁺]

log [H⁺] = -5.0

[H⁺] = anitlog(-5.0)

= 10^-5M

(iii) pH of tomato juice = 4.2

Since, pH =-log [H⁺]

4.2 =-log [H⁺]

log [H⁺] = -4.2

[H⁺] = anitlog(-4.2)

= 6.31x10^-5M

(iv) pH of lemon juice = 2.2

Since, pH = -log [H⁺]

2.2 = -log [H⁺]

log [H⁺] = -2.2

[H⁺] = anitlog(-2.2)

=6.31x10^-3M

(v) pH of egg white = 7.8

Since, pH = -log [H⁺]

7.8 = -log[H⁺]

log[H⁺] = -7.8

[H⁺] = anitlog(-7.8)

= 1.58x10^-8M

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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.

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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.

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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.