13C(13.003355amu) plus a trace of 14C(14.003241amu). The Atomic Mass of carbon is found to be 12.011 amu. A Molecular Mass is the sum of the (averaged) Atomic Masses for all atoms in a molecule. What is the Molecular Mass of H2SO4 ? amu Tries 0/15 mole of carbon (or 6.0221023 carbon atoms) has a mass of 12.011g. The Molar Mass of any chemical compound is the mass of one mole of the "molecules", as designated by its written chemical formula. What is the Molar Mass of H2SO4 ? understood.) 1 pts Tries 0/15 What is the mass percentage of oxygen in H2SO4 ? (Do NOT include the symbol "\%" in your response.) % Tries 0/15