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CBSE Class 9 Answered

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Asked by araima2001 | 20 May, 2014, 02:22: PM
Expert Answer

Mass of 1 mole of phosphorus(P4) = 124g

So 124 g of phosphorus contains 6x1023 molecules

P4 molecule contains 4 atoms

So 124g of phosphorus contains =4x 6 x 1023 atoms

So 12.4g of phosphorus contains = 4 x 6 x 1023 x 12.4 = 2.4x1023 atoms

124

Mass of 1 mole of phosphorus = 124g

So moles in 12.4g phosphorus = 124 = 10 moles

12.4

Answered by Vaibhav Chavan | 21 May, 2014, 10:42: AM
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