You carefully weigh out 17.00 g of CaCO3 powder and add it to 68.85 g of HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 78.88 g . The relevant equation is

CaCO3(s)+2HCl(aq)→H2O(l)+CO2(g)+CaC l2(aq)
Assuming no other reactions take place, what mass of CO2 was produced in this reaction?
Express your answer to three significant figures and include the appropriate units