6. 1.104 g of sodium carbonate is dissolved in water in a 250.0 mL volumetric flask. 20.00 mL aliquots of this solution were titrated with nitric acid. An average titre of 23.47 mL was found. a. What is the concentration of sodium carbonate solution? b. What is the concentration the nitric acid? 7. A chemistry student is required to determine accurately the concentration of a solution of hydrochloric acid. First, she makes up 250.0 mL of a standard solution of sodium carbonate. This solution contains 1.358 g of Na2CO3. She then takes 20.00 mL aliquot of this standard solution and titrate it against the acid. An average titre of 20.24 mL of acid was required to reach the end point. a. Write a balanced equation for the reaction involving the titration. b. Calculate the concentration of the sodium carbonate solution. C. Find the concentration of the acid as indicated by the student's results. d. If sulfuric acid of the same concentration as the hydrochloric acid was used instead of the hydrochloric acid. What effect would this have had on the volume of acid required for the titration