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Science · Chemistry
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Consider the following information when answering questions 13-1 HNO2 (K.-4.5 x 10-4) and HCN (K,-4.9x 1010) 13. Which of the following has t he smallest % ionization? a. 0.5 M HCN b. 0.5 M HNO2 c. 0.5 M HNOs d. 1.0 M HCN e. 0.4 M HNO 14. Which of the following has the highest pH? a. 0.5 M HCN b. 0.5 M HNO2 C. 0.5 M HNO3 d. 1.0 M HCN e. 0.4 M HNO3 Consider the following information when answering questions 15- 16. CH3NH2 (pkb :3.30) and CsHsN (pKs 8.82) 15, which of the following has the smallest % ionization? a. 0.5 M CSHSN b. 0.5 M CH3NH2 c. 1.0 M RbOH d. 1.0 M CsHSN e. 0.4 M RbOH 16. Which of the following has the highest pH? a. 0.5 M CsHsN b. 0.5 M CH3NH2 c. 1.0 M RbOH d. 1.0 M CSHSN e. 0.4 M RbOH Consider the following information when answering questions 17-18 The hypothetical acid, HzX, has a Kal 1.0 x 10 and Ka2 - 5.0x 1011. If [HX]-1.60 M: 17. Calculate [HX] (in M): a. x 10- b. 6.3 x 10 C. 4.0x104 d. 3.0 x 104 e. 2.2 x 10 18. Calculate [X°] (in M): a. 3.8 x 10-18 b. 5.0 x10-11 c. 1.0 x 107 d. 4.6 x 10-13 e. 5.8 x1014
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