Hydrochloric acid (HCl) reacts with sodium carbonate (Na2CO3), forming sodium chloride (NaCl), water (H2O), and carbon dioxide (CO2). This equation is balanced as written:
2HCl(aq)+Na2CO3(aq)→2NaCl(aq)+H2O(l)+CO2(g)
a) What volume of 1.00 M HCl in liters is needed to react completely (with nothing left over) with 0.250 L of 0.400 M Na2CO3?
b) A 565-mL sample of unknown HCl solution reacts completely with Na2CO3 to form 14.1 g CO2. What was the concentration of the HCl solution?