Question
Define atomic weight, molecular weight and equivalent weight and explain them.

Answer

SELF

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A compound on analysis found to contain following percentage composition:
$Na = 43.4\%, C = 11.4\%$ and $O = 45.3\%$. Determine the empirical and molecular formulae.
Given: the relative molecular mass of the compound is $106$.
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  2. Sodium hydroxide
  3. Sodium peroxide
  4. Sodium carbonate?
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  2. The value of $K_c$ in the reaction:
$2\text{A}\rightleftharpoons\text{B}+\text{C}$ is $2 \times 10^{-3}$. At a given time, the composition of reaction mixture is $[A] = [B] = [C] = 3 \times 10^{-4}M$. In which direction the reaction will proceed?
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For the reaction: $\text{N}_2(\text{g})+3\text{H}_2(\text{g})\rightleftharpoons2\text{NH}_3(\text{g})$at 400K, $K_p = 41$. Find the value of $K_p$ for each of the following reactions at the same temperature.
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Explain, why an organic liquid vaporises at a temperature below its boiling point in its steam distillation?