Question

Citric acid has the formula C3H3OH(COOH)3. How many atoms of carbon,hydrogen and oxygen are in each molecule?

Please help I don't understand this!! Thank you

Answer 1

Just looking at the formula
C3 H3 OH (COOH)*3
C = 3+3 = 6
H = 3+1+3 = 7
O = 1+6 = 7