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What is the mass of (a) 1 mole of nit...

What is the mass of
(a) 1 mole of nitrogen atoms?
(b) 4 moles of aluminium atoms (Atomic mass of aluminium = 27 ?)
(C) 10 moles of sodium sulphite `(Na_(2)SO_(3))` ?

Text Solution

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(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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