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  2. What is the mass of: (a) 0.2 mole of oxygen atoms?
# NCERT

Q 9.     What is the mass of:

  (a)     0.2 mole of oxygen atoms? 

Answers (1)
P Pankaj Sanodiya

 The mass of 1 mole of oxygen atoms = 16 g

 The mass of 0.2 mole of oxygen atoms = 0.2 x 16 g

                                                                = 3.2 g

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