Chemistry help needed to Calculate the number of moles of Alka Seltzer that reacted

Chemistry
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Column 6: Calculate the number of moles of NaHCO3 that reacted in each beaker. (The molar ratio between evolved CO2 and the bicarbonate, HCO3-, is 1:1) 

Note: I used 3g of Alka Seltzer, Mass of Co2 evolved was 0.682g, moles of CO2 evolved was 0.0155g/moles

Nov 1st, 2015

Thank you for the opportunity to help you with your question!

According to the balanced chemical equation, it takes one mole of NaHCO3 to produce one mole of CO2.

Therefore,

mass of NaHCO3 reacted =

(mass of CO2 generated / M.W. of CO2) × M.W. of NaHCO3

So mass of NaHCO3 reacted =0.682g,/44x 84=1.302g

moles of NaHCO3=mass/M.W.=1.302/84=0.0155moles


Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 1st, 2015

1.302g would be the mass of alka seltzer consumed what would be the moles of alka seltzer consumed? The other answer was needed as well so thank you

Nov 1st, 2015

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