E. 9.27 Which of the following relationships is true? A. Ka+ Kb= 14.00 B. KaKb=Kw C. KaKb=14.00 D. Ka+ Kb =Kw E. None of the above is true pOH + pH = ___. A. 1.0 10-14 • B. Kw C. 10-14) –log(1.0 • D. 7.00 Consider the titration of HCl with Mg(OH)2. What is the pH of the solution at the equivalence point? A. <7 B. >7 C. =7 D. Need more information The pH of a solution is 8.9. What is the concentration of hydroxide in the solution? A. 5.1 B. 1.2589x10-9 C. 1.3x10-9 D. 7.9x10-6 A solution with a pOH of 2.4 is ___ A. Acidic B. Basic C. Neutral If you are 2.0moles of NaOH and put it in 4L of water, what is the resulting pH? A. 0.5 B. 13.7 C. 0.3 D. 8.9 The Ka for an acid is 1.8x10-4. What is the Kb for its conjugate base? A. 1.8x10-4 B. 6.9x10-6 C. 5.6x10-11 D. 4.1x10-9
E. 9.27 Which of the following relationships is true? A. Ka+ Kb= 14.00 B. KaKb=Kw C. KaKb=14.00 D. Ka+ Kb =Kw E. None of the above is true pOH + pH = ___. A. 1.0 • 10-14 B. Kw C. –log(1.0 • 10-14) D. 7.00 Consider the titration of HCl with Mg(OH)2. What is the pH of the solution at the equivalence point? A. <7 B. >7 C. =7 D. Need more information The pH of a solution is 8.9. What is the concentration of hydroxide in the solution? A. 5.1 B. 1.2589x10-9 C. 1.3x10-9 D. 7.9x10-6 A solution with a pOH of 2.4 is ___ A. Acidic B. Basic C. Neutral If you are 2.0moles of NaOH and put it in 4L of water, what is the resulting pH? A. 0.5 B. 13.7 C. 0.3 D. 8.9 The Ka for an acid is 1.8x10-4. What is the Kb for its conjugate base? A. 1.8x10-4 B. 6.9x10-6 C. 5.6x10-11 D. 4.1x10-9
chem_102_mock_exam_4_fall_2017_.docx