![]() It is the total of the atomic weights of all the atoms in the compound's molecule. The molecular weight is another name for molar mass. One mole of oxygen and two moles of hydrogen atoms make up one mole of water. One oxygen atom and two hydrogen atoms make up one water molecule. After that, all of the elements' masses are added. The atomic mass of each substance is multiplied by the subscript of that element in the chemical formula to obtain the molar mass. A substance's molar mass is the mass of one mole of the substance. What is the molar mass of H 2O? (5 marks)Īns. Read More: Planck's Quantum Theory and Black Body Radiation
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