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5. At 60 °C the value of Kwis 9.5 x 1014. Considering this, what is the...
8. What is the pH of a 5.00 x 102 M Ba(OH)2(aq) solution at room temperature? a. 1.00 b. 1.30 c. 12.02 d. 12.70 e. 13.00 9. Assuming equal concentrations of conjugate acid and base, which one of the following mixtures is suitable for making a buffer solution with an optimum pH of 4.6-4.8? a. CH3COONa/CH3COOH (K = 1.8 x 105) b. NH/NHACI (K = 5.6 x 10-1) c. NaOCI/HOCI (Ka = 3.2 x 108) d. NaNO2/HNO2 (Ka = 4.5...
1. 200 mL of an aqueous solution contains 0.030 M concentrations of both Pb2+ and Ag+. If 100 mL of 6.0 x 10-2 M NaCl is added to this solution will a precipitate form? If so, what will the precipitate be? The Ksp values for PbCl2 and AgCl are 1.7 x 10-5 and 1.8 x 10-10] 2. Which of the following is the expression for the solubility product of Ba3(AsO4)2? 3. The pKa of a weak acid is 6.50. What...
5. At body temperature (37°C), Kw = 2.4 x 1014. What is the pH of pure water at that temperature? Does Kw increase with temperature? (10 points) S88
5) Calculate the pH of the following solutions a) 2.5 x 10 M HCI c) 9.5 x 10 8M OH (see problem 4 for converting to hydronium first!) b) 9.5 10 M HNO3 5 Page
please solve and show work! A 100.0 mL sample of 0.10 M Ba(OH)2 is titrated with 0.10 M HBr. Determine the pH of the solution after the addition of 100.0 mL of 0.10 M HBr. Assume volumes can be added. Hint: Remember 1 mole of Ba(OH)2 will give 2 moles of OH A. 12.00 B. 1.30 C. 12.70 D. 2.00 E. 7.00
What is the wavelength of light with a frequency of 5.2 x 1014 Hz? a. 1.7 x 10 m b. 1.9×10-m c. 5.8 x 10 m d. 3.8 ×10-5 m e none of these What is the wavelength of light with a frequency of 5.2 x 1014 Hz? a. 1.7 x 10 m b. 1.9×10-m c. 5.8 x 10 m d. 3.8 ×10-5 m e none of these
What is the wavelength of light with a frequency of 5.2 x 1014 Hz? a. 1.7 x 10 m b. 1.9×10-m c. 5.8 x 10 m d. 3.8 ×10-5 m e none of these What is the wavelength of light with a frequency of 5.2 x 1014 Hz? a. 1.7 x 10 m b. 1.9×10-m c. 5.8 x 10 m d. 3.8 ×10-5 m e none of these
Determine the OH-] PH, and pOH of a solution with a H+] of 9.5 x 10-10 M at 25°C. (OH) = pH = pOH = Determine the (H+). pH, and pOH of a solution with an (OH) of 0.00075 M at 25°C. pH = pOH = pOH = Determine the H+, JOH, and pOH of a solution with a pH of 5.85 at 25°C. Determine the (H+). JOH), and pOH of a solution with a pH of 5.85 at 25°C....
5. Which of the following species is amphiprotic in aqueous solution? (a) CH3NH2 c) NH4 (e) HSO (d) F (b) Н:0" 6, Use Table 15.2 (page 529) to decide whether the species on the left or those on the right are favored by the reaction. a. NH4 (aq) + H2PO4" (aq) # NH3(aq) + HsPO b. HCN (aq) + HS(aq) CN" (aq) +H2S c. HCO +OH CO2 H2S d. Al(H20)6 3+ +OH = Al(H20) s2+ OH 7. The equilibrium constant...
What is the pH of a 0.050 M LiOH solution? a. <1.0 b. 1.30 c. 3.00 d. 11.00 e. 12.70