Question

7.3
gm of organic compound contains 3.6 gmof carbon
1.4 gm Nitrogen 1.6 gm oxygen and rem
and remaning hydregen
find emperical formula of Compound​

Answer 1

Answer: C3NOH3

Explanation:

carbon+Nitrogen+oxygen+hydrogen=organic compound

3.6g + 1.4g + 1.6g + hydrogen = 7.3 g

calculate weight of hydrogen = 0.7 g

step 1 : convert in to moles of each element

Given mass/ molar mass= no.of moles

Moles of carbon =0.3

Moles of nitrogen=0.1

Moles of oxygen=0.1

Moles of hydrogen= 0.7

step 2: Divide the mole value obtained above by the smallest value

since 0.1 is smallest value divisible by its gives

3:1:1:3

step 3: write empirical formula by mention numbers after writing the symbols of element

C3NOH3