Question

how to find out the molecular formula

Answer 1

find the emprical mass
eg
calculate the empirical and molecular mass of oh whose gram molecular mass is 35

it contains 1 oxygen and 1 hydrogen atom
= 1+ 16
=17
empirical mass = 17
molecular mass = gram molecular mass ÷ empirical mass
molecular mass = 35 ÷ 17 = 2
multiply the value with the given elements to derive molecular formula
H2O2 is the molecular formula for this question
HOPE IT HELPS YOU

Answer 2

Answer:

first u need to find the emperical formula and then u can find molecular formula

emperical formula

1. masses of element
2. percentage of each  element
3. mole ratio of each elements
4. simplest ratio
5. emperical formula

after finding all the things above u can find the molecular formula