What is the mass of (a) 1 moleof nitrogen atoms? (b) 4 moles of alum – InterviewSolution

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1.	What is the mass of (a) 1 moleof nitrogen atoms? (b) 4 moles of aluminium atoms (Atomic mass of aluminium = 27 ?) (C) 10 moles of sodium sulphite (Na_(2)SO_(3)) ?
Answer» Solution :(a) The mass of 1 mole of nitrogen atoms is 14g. (b) The mass of 4 moles of ALUMININUM atoms is `(4x27)=108g`. (C) The mass of 10 moles of Sodium Sulphite `(Na_(2)SO_(3))` is `10x[2x23+32+3x16]g=10x126g=1260g`

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