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NTA Abhyas JEE Main2020ChemistrySome Basic Concepts of ChemistryPractice

Percentage loss in mass, when N a H C O 3 ( s ) is heated in open vessel 2 NaHCO 3 (s) → Na 2 CO 3 s + CO 2 g + H 2 O g

Options

  1. A21.12%
  2. B36.9%
  3. C30%
  4. D32.23%

Correct answer

B. 36.9%

Step-by-step solution

Let the number of moles of NaHCO 3 is x . Wt .   loss   =   x 2   ×   44   +   x 2   ×   18 %   Weight   loss = x 2 × 62 x × 84 × 100 = 36.9 %

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