11 | Mole Concept

State the 4 methods to calculate no. of moles.


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State the 3 things that is need to calculate % by mass of a part.

(1) mass of part
(2) no. of part
(3) mass of whole


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Define molecular & empirical mass.

molecular mass | shows actual no. of atoms of each element in substance

empirical mass | simplest ratio of atoms of each element in substance


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Draw the table for determining empirical formula from mass data.

molecular mass | shows actual no. of atoms of each element in substance


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