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Question
How many grams are there in the following?
4 moles of the phosphorous molecule, P4
Solution
Formula = No. of moles (n) × (Gram molecular mass)
4 moles of the phosphorous molecule, P4
Mass of 1 mole of phosphorous molecule = 30.97 g
Mass of 4 moles of phosphorous molecules = 30.97 × 4 = 123.88 g.
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