Question

Identify the basic substances from followings with the help of pH given. 

1.Black coffee with pH 5.0

2.Lime water with pH 11.0

3.Blood with pH 7.4

4.Gastric juice with pH 1.0

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Answer 1

Answer:

Given that K

w

for water is 10

−13

M

2

at 62

o

C. Compute the sum of pOH and pH for a neutral aqueous solution at 62

o

C:

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