How many moles of Na2CO3 can be produced?


Which reagent is the limiting reactant when 1.82 mol NaOH and 1.00 mol CO_2 are allowed to react?

NaOh is the limiting factor

my question:

How many moles of Na2CO3 can be produced?


also how many grams of the excess reactant remain after the limiting factor is completely used? thanks so much guys!

@oli-thank you that's correct! how did you get the answer?

7 Answers

  • Of course you want to know how to get this answer:

    You have identified the NaOH as the limiting reactant

    The amount of Na2CO3 is governed by the mol of the limiting reactant

    Look at the balanced equation:

    2mol NaOH will produce 1 mol Na2CO2

    Note : Mol Na2CO3 is half mol of NaOH

    You have 1.82 mol NaOH

    Therefore you have 1.82/2 = 0.91 mol Na2CO3 produced.

    Your additional question:

    From the equation:

    1.82 mol NaOH will react with 0.91 mol of CO2

    You have 1.00 mol CO2.

    Mol CO2 unreacted = 1.00- 0.91 = 0.09 mol CO2

    Molar mass CO2 = 44g/mol

    0.09 mol CO2 = 0.09*44 = 3.96g CO2 is left unreacted.

  • Moles Of Na2co3

  • If NaOH is the limiting factor, then that means the maximum amount of NaOH that can react will be 1.82 mol, and this reacts with half the moles of Carbon which is 0.91 Moles.

    From the equation; the molar ratio is 2NaOH:Na2CO3

                                                   = 2       :1
                                                   =1.82 : 0.91

    So 0.91 moles of Na2CO3 is the maximum that can be produced.

    So we know 0.91 moles of CO2 react with 1.82 moles of NaOH. This means that 0.91(162+12)

    grams of CO2 will react (Moles*Mr = mass)

    Which is 40.04 g of CO2 will react.

    From the compositions at the beginning, you put in 1 mol of CO2 which is 1(12+162) = 44g

    So the amount left is (44-40.04 = 3.96 g)

    Sorry if I have made any mistakes or given any incorrect information. I have a very basic understanding of chemistry.

  • For the best answers, search on this site

    Limiting Reagent : NaOH 1.14 moles Na2CO3 0.06 moles of Excess Reactant left after completion.

  • .91 moles

  • 0.91 Moles.

  • 0.91 mols

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