Question #b5e69 Chemistry The Mole Concept The Mole 1 Answer MathyMark · Ernest Z. Sep 14, 2017 3.01×1021 molecules O2 Explanation: MCO2=220 mg MWCO2=44.01 g/mol O2 molecules = ? moles CO2=MCO2MWCO2=220 mg1000 mg/g44.01 g/mol=0.00500 mol moles O2 per mole CO2=1 Avogadro's number=NA=6.022×1023 molecules/mol O2 molecules=moles CO2×moles O2moles CO2×NA =0.00500 mol CO2×1 mol O21 mol CO2×6.022×1023 molecules O21 mol O2 =3.01×1021 molecules O2 Answer link Related questions How do you calculate the number of moles from volume? How do you convert grams to mole? Question #258e5 Question #8d48c Why is the mole an important unit to chemists? What's the mole number? How does the mole relate to carbon 12? How does the mole relate to molecules and ions? How do you calculate the moles of a substance? How can I calculate the moles of a solute? See all questions in The Mole Impact of this question 1536 views around the world You can reuse this answer Creative Commons License
