How to find molecular mass of an element?
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Firstly Go to periodic table..
Secondly Find the molar mass of each element within the compound. Each element has its own molar mass noted at the bottom of its square in the periodic table. For example, oxygen is about 15.999 grams per mole. You should write down each individual element's molar mass before continuing. This is especially helpful when you get into looking at the molar mass of more complex chemical compounds.
Thirdly Decide how many atoms of each element make up the chemical compound. This will be given to you in the chemical compound formula. For example, in water, H20, there are two atoms of hydrogen and one atom of oxygen. The subscript number relates to the element directly before it. If no number is present, assume it is a 1.
Thirdly Decide how many atoms of each element make up the chemical compound. This will be given to you in the chemical compound formula. For example, in water, H20, there are two atoms of hydrogen and one atom of oxygen. The subscript number relates to the element directly before it. If no number is present, assume it is a 1.
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