1.

Which of the following weighs most?(1) 50 g of iron (ii) 5 g atoms of nitrogen (iii) 0.1 g atom of silver (iv) 1 x 1023 atoms of carbon

Answer»

moles of 50g Iron = 50/56 = 0.89 ✓

Moles of 5g atom of N = 5/14 = 0.35

moles of 0.1g silver = 0.1/108 < 0.89

moles of C = 1/6 moles

so , option (1) is correct


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