How do you calculate the empirical formula of a compound formed from 3% #C#, 0.3% #H#, and 96.7% #I#?
Assume that 100 grams contains:
3 grams of C, 0.3 grams of H, and 96.7 grams of I.
Next step, calculate the number of moles of each atom using the formula
n = number of moles
m = mass of substance
M = molar mass
The number of moles (n) for:
Carbon = 3 grams
Hydrogen = 0.3 grams
Iodine = 96.7 grams
Then, divide all number of moles BY THE SMALLEST above and round to nearest whole number.
Carbon = 0.25
Hydrogen = 0.30
Iodine = 0.76
Assign them as subscripts.
Therefore, the empirical formula is