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0.4 gm of an organic compound was treate...

0.4 gm of an organic compound was treated according to Kjeldahl's method. The ammonia evoled was absorbed in 50 ml or `0.5MH_3PO_3`. The residual acid required 30 ml of `0.5MCa(OH)_2` Find the percentage of `N_2` in the compound.

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To solve the problem step by step, we will follow the Kjeldahl method to find the percentage of nitrogen in the organic compound. ### Step 1: Understand the given data - Mass of the organic compound = 0.4 g - Volume of H₃PO₃ used = 50 ml - Concentration of H₃PO₃ = 0.5 M - Volume of Ca(OH)₂ used = 30 ml - Concentration of Ca(OH)₂ = 0.5 M ...
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