A compound is known to contain 46.45% carbon and 20.61% oxygen by mass. each molecule contains two atoms of oxygen. what is the molar mass of this substance?

The compound is made of 2 oxygen molecules and the oxygen made of 20.61% its mass. If the molar mass of oxygen is 16, the molar mass of the compound will be:

2 * oxygen * (16g/mol / oxygen) = 20.61% compound mass

compound mass = 32g/mol / 20.61%

compound mass = 155.26 g/mol