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 Which of the following sample weighs more ?

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a
2 gram atoms of silver
b
224 litres of ethane at STP
c
10 moles of nitrogen
d
248 grams of phosphorous

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detailed solution

Correct option is B

(1) 2 gram atoms of silver = 2 ×108g = 216 g ;(2) 224 litres of ethane at STP= 224 ×3022.4 g = 300 g ;(3) 10 moles of nitrogen = 10 ×28 g = 280 g ;(4) 248 grams of phosphorous ;

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