The percentage by mass of any element is calculated with the help of?

کی مدد سے کسی بھی عنصر کی کمیت کے لحاظ سے فیصد کا حساب لگایا جاتا ہے؟

Formula of compound only

Relative atomic masses only

Nucleon number

Formula of compound and relative atomic masses

The percentage by mass of an element in a compound is calculated using the formula:

Percentage by mass = (Mass of element in 1 mole of compound / Molar mass of compound) x 100