14. What unknown quantity can be calculated after performing a titration? a. volume c. mass b. concentration d. density 15. What is the molarity of an HCl solution if 50.0 mL is neutralized in a...

14. What unknown quantity can be calculated after performing a titration? a. volume c. mass b. concentration d. density 15. What is the molarity of an HCl solution if 50.0 mL is neutralized in a titration by 40.0 mL of 0.400 M NOH? a. 0.200 M c. 0.320 M b. 0.280 M d. 0.500 M 16. What is the molarity of an NaOH solution if 3.47 mL is titrated by 11.1 ml of 0.0904 M HNO,? a. 0.289 M c. 0.460 M b. 0.355 M d. 0.620 M 17. Which of the following pairs identify the two components that must be present to make a buller? a. two salts b. strong acid and salt c. strong acid and strong base d. weak acid and its conjugate base or weak base and its conjugate acid 18. Which of the following is/are an appropriate classification of the reaction given below? KOH(aq) + CO:(8) KHCO,(aq) 1. The above reaction may be classified as an Arrhenius acid-base reaction. 2. The above reaction may be classified as a Brønsted-Lowry acid-base reaction. 3. The above reaction may be classified as a Lewis acid-base reaction. a. I only b. 2 only c. 3 only d. 1 and 3 Short Answer ( 2 points each) 19. What determines the behavior of an amphoteric compound? 20. How can the equivalence point in a titration be detected by using a pH meter?