Answer:
volume of O2 = 3000cm³
Step-by-step explanation:
no. of moles= mass of oxygen (g)/molar mass of oxygen(g/mol)
= 4/32
=0.125
volume of oxygen= no. of moles × 24000 cm³ (or 24dm³)
= 0.125 × 24000 cm³
=3000cm³ (or 3dm³)
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