If we consider that 1/6 in place of 1/12 mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will be

what is the atomic mass of 1 atom of oxygen? is it 16u? what is the difference between atomic mass and molar mass??

since 1 mole is equal to the amount of substance present in 12 g of carbon isotope 12 is 1 molar mass equal to the molar mass of 12 g of carbon 12?