Which of the following sample weighs more ?

(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 ;