What is the mass of one molecule of yellow phosphorus in milligrams ?

1.	What is the mass of one molecule of yellow phosphorus in milligrams ? (Atomic mass of P = 30)
Answer» Solution :Molecular mass of yellow phosphorus `(P_(4))=30 xx 4 = 120g` `6.022 xx 10^(23)` MOLECULES of yellow phosphorus have mass `= 120 G = 120 xx 10^(3) MG` 1.0 MOLECULE f yellow phosphorus has mass `= ((120xx10^(3)mg))/(6.022xx10^(23))=1.993xx10^(-23)mg`.

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