typical science fair demonstration project of making a volcano uses the reaction

Question

typical science fair demonstration project of making a volcano uses the reaction between the vinegar (contain acetic acid HC2H3O2; 60.05g/mol) and baking soda (contains NaCO3;10.599 g/mol) if 1 cup (235mL) of vinegar (0.66M HC2H3O2) is added to 1 tablespoon (24.0g) of baking soda (Na2CO3) Determine limiting reagent? What volume (in L) of CO2(44.01 g/mol) would be produced at 25degree Celsius and at 735torr? 2HC2H3O2(aq)+NaCO3(s)---> 2NaC2H3O2(aq)+H2O(I)+CO2(g)
typical science fair demonstration project of making a volcano uses the reaction between the vinegar (contain acetic acid HC2H3O2; 60.05g/mol) and baking soda (contains NaCO3;10.599 g/mol) if 1 cup (235mL) of vinegar (0.66M HC2H3O2) is added to 1 tablespoon (24.0g) of baking soda (Na2CO3) Determine limiting reagent? What volume (in L) of CO2(44.01 g/mol) would be produced at 25degree Celsius and at 735torr? 2HC2H3O2(aq)+NaCO3(s)---> 2NaC2H3O2(aq)+H2O(I)+CO2(g)
Determine limiting reagent? What volume (in L) of CO2(44.01 g/mol) would be produced at 25degree Celsius and at 735torr? 2HC2H3O2(aq)+NaCO3(s)---> 2NaC2H3O2(aq)+H2O(I)+CO2(g)

Explanation / Answer

two moles of acetic acid reacts with one moles of Na2Co3.

molar mass of Na2CO3= 106 g/mol

so moles of Na2CO3 = 24/106

=0.2264 moles

moles of CH3COOH used = 0.66*0.235

=0.1551

so moles of Na2CO3 required for the acid to react completely = 0.1551*2

=0.3102

Hence the limiting react is Na2CO3 (since it is less than the required amount)

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