Chemistry - PC\|MAC

1 mole = 6.022 x 1023 units (can be atoms, molecules, etc) 1 mole = 22.4 L of gas at STP (0° C and 1 ATM) Calculating Molecular Mass. write down each element in the formula. multiply the atomic mass (from periodic table) of the element by the number of atoms present. add together the mass of each element present. CO2. C 1 x 12.01 g/mol = 12.01 ... ................
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