An impure sample of sodium carbonate, Na2CO3, is titrated with 0.150 M HCl according to the reaction below. 2HCl(aq) + Na2CO3(aq) yields CO2(g) + H2O(l) + 2NaCl(aq)
What is the percent of Na2CO3 in 0.927 g sample if the titration requires 27.3 mL of HCl? the molar mass of Na2CO3 is 106.0 g/mol
a. 93.7%
b. 0.221%
c. 23.4%
d. 46.8%
e.104%