To determine an element's molar mass, it is necessary to add together the weight of all of the atoms present in the sample. The atomic weight of an element is printed inside the element's box on the periodic table. The m... More » Science Chemistry Atoms & Molecules

The molar mass of lead is 207.2 grams/mole. The element has an atomic number of 82 and is a solid at room temperature. It can be found in period 6 and group 14 on the periodic table. More » Science Chemistry

The molar mass of molecular oxygen O2 is 32 g/mol. This means that 1 mole of oxygen, containing a number of molecules equal to Avogadro's constant, weighs 32 grams. More » Science Chemistry
similar articles

The atomic theory formulated by the British chemist John Dalton proposes that atoms are indivisible particles comprising all matter; atoms of the same element share identical properties, including shape, size and mass; a... More » Science Chemistry Atoms & Molecules

Calculate the molar mass of a compound by using the chemical formula of the substance and the atomic weight for each type of atom in the substance. For example, the molar mass of sodium carbonate is 106 grams per mole. More » Science Chemistry Atoms & Molecules

The molar mass of iron is 55.8 grams/mole. The element also has a chemical symbol of Fe and an atomic number of 26. Iron can be found in group 8 and period 4 on the periodic table in the transition metal group. More » Science Chemistry Atoms & Molecules

(NH4)2CO3 is the chemical formula of ammonium carbonate, a chemical compound with a molar mass of 96.09 grams per mole. Its density is 1.50 grams per cubic centimeter. It is normally soluble in water, but it decomposes i... More » Science Chemistry Atoms & Molecules