1.

What is the mass of 2.5 moles of CO2 ? (1) 100 g (2) 110 g (3) 88 g (4) 98 g

Answer»

 (2) 110 g

One mole CO2 = 44 g

⇒ 2.5 moles = 2.5 × 44

= 110 g of CO2.



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