Question

Morphine contains 67.3% carbon, 4.6% nitrogen (by mass) and remaining are the other constituents. Calculate the relative number of carbon and nitrogen atoms in morphine.?
ANS PLZ!!!

Answer 1

Answer:

The relative number of carbon is  $17$  and nitrogen is  $1$·

Explanation:

Relative numbers are the smallest whole numbers that are found in the empirical formula of the compound·

In order to find the smallest whole numbers,

Consider,

     Morphin as $100g$ of compound with $67.3g$ of carbon, $4.6g$ of nitrogen and remaining are other consistuents·

⇒ No. of moles of carbon $= \frac{67.3g}{12}$  $= 5.608mol$

   No. of  moles of nitrogen $= \frac{4.6g}{14g} = 0.328 mol$

⇒ To find the smallest ratio,

   The smallest number of carbon    $= \frac{5.608}{0.328} = 17.09$ ≈ $17$

    The smallest number of nitrogen $= \frac{0.328}{0.328} = 1$

Thus

    The relative number of carbon $= 17$

    The relative number of nitrogen $= 1$