Question

A mixture of Na2CO3and NaHCO3has a mass of 82.2 g. It is dissolved in 1.00 L of water and
the pH is found to be 9.95. The mass of NaHCO3 in the mixture is (Given that
Ka of H2CO3 = 4.3 x 10-7 and Ką of H2CO3 = 5.6 x 10-11 (log 5.6 = 0.75, log 2 =
0.3)
(A) 50.4 g
(B) 32.5 g
(C) 60.4 g
(D) 41.1 g​

Answer 1

Answer:

c

Explanation:

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Answer 2

Answer:

option A.....

Explanation:

When baking soda or sodium Bicarbonate (NaHCo3) reacts with water carbonic acid is formed . The reaction is exothermic that is heat and Carbonic acid are produced. Carbonic acid is unstable so breaks up into carbon dioxide (fizzy or effervescence) and water.