This is a chemistry homework question can‘t figure out how to do it, please help!!How many O atoms are in 2.50 L of CO2 at STP?
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2.50L x 1 mol/22.4 L = 0.112 moles CO2. Now, in mol of CO2 there are 6.022x1023 molecules and in each molecule there are 2 atoms of O. So to find the numb of O atoms you do the following:
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