Answer:
H2O2
Step-by-step explanation:
The molecular formula for hydrogen peroxide can be determined by using its molar mass and the percent composition of hydrogen and oxygen.
First, we need to find the number of moles of each element in 1 mole of hydrogen peroxide.
5.9% of hydrogen peroxide is hydrogen, which is 0.059 moles.
94.1% of hydrogen peroxide is oxygen, which is 0.941 moles.
Next, we use the molar mass to calculate the number of atoms in 1 mole of hydrogen peroxide.
The molar mass of hydrogen is 1 g/mol, so there are 0.059 moles of hydrogen atoms in 1 mole of hydrogen peroxide.
The molar mass of oxygen is 16 g/mol, so there are 0.941 x 16 = 15.056 moles of oxygen atoms in 1 mole of hydrogen peroxide.
Since there are 0.059 moles of hydrogen atoms and 15.056 moles of oxygen atoms in 1 mole of hydrogen peroxide, the molecular formula is H2O2 (two hydrogen atoms and two oxygen atoms).