Question

Calculate the molecular formula for caffeine, a compound with a molar mass of approximately 195g and the following percent composition: 49.5% C, 5.15% H 28.9% N, 16.5% O

Answer 1

Answer:

The molecular formula is C8H10N4O2

Explanation:

The following were obtained from the question given:

% of Carbon = 49.5%

% of Hydrogen = 5.15%

% of Nitrogen = 28.9%

% of Oxygen = 16.5%

Please see attachment for explanation on how to get the molecular formula.