Question

Determine which reactant is the limiting reactant, if,

Mass of Sodium Bicarbonate= 2.00g
Mass of Citric Acid = 0.76g

Are my calculations right, or is it wrong?

(2.00g of NaHO3)(1mol/84.01g of NaHO3)(1mol of H3C6H5O7/ 3 mol of NaHO3)(192.14g of H3C6H5O7)= 1.52g of citric acid

Therefore, citric acid is limiting reactant since 0.76 g of citric acid is less than the equivalent amount which is 1.52g.

Answer 1

I agree.

Answer 2

Then, if it asks to calculate the theoretical yield of carbon dioxide based on my limiting yield,

(0.76g citric acid)(1 mol/ 192.14g citric acid)(3mol CO2/ 1mol)(44.01g CO2/1 mol)= 0.52g CO2

is that right? And if that is correct can the percent yield be over a 100% cause my percent yield came out to be 127%

* mass of carbon dioxide= 0.66g

my calculations for percent yield:

(0.66g/0.52g)(100)= 127%