Answer to Question #118342 in Physical Chemistry for shahin

Question

a compound used in making nylon,contains 43.8% oxygen.there are four oxygen atoms per molecule. the molecule mass of compound

Answer 1

Let the molar mass of the compound be $x$

mass of 4 atoms of oxygen = 4$\times$ 16=64 g

64 g of this oxygen accounts for 43.8 % of the total weight

$43.8 \% \ of\ x = 64 g$

$x=\frac{64\times100}{43.8 }=146.11 g$

molar mass of the compound is 146.11 g