46. What is the H30' concentration in 0.0013 M LiOH(aq) at 25 °C? (Kw = 1.01 x 10-4) a. 7.7 x 10-12 M b. 1.3 x 10-3 M c. 1.0 × 10-14 M. d. 1.0 x 10-7M e. 1.3 * 10-17 M
What is the OH concentration of an aqueous solution with a pH of 2.77? (K.-1.01 x 10) 5.9 x 10-12 M b. 1.7x 10M 12. a. c. 5.2 x 10 M d. 1.1 x 10 M e. 5.9 x 10 M 13. An aqueous solution with a pH of 10.60 is diluted from 1.0 L to 2.0 L. What is the pH of the dilc
26. What is the pH of 10 M Na Sos(aq) at 25 "C?(K1 - 1.2 x 10 KA-6.2 x 10 ) a. 3.40 b. 6.03 c. 7.96 d. 10.40 e. 10.60
A 50.00-mL solution of 0.0350 M trimethylamine (Kb = 6.5 × 10^–5) is titrated with a 0.0228 M solution of hydrochloric acid as the titrant. What is the pH at the equivalence point? (Kw = 1.0 × 10^–14) a) 9.81 b) 8.16 c) 3.02 d) 4.19 e) 5.84 Ans: e
eda 17, what is the pOH ofa 0.0077 M KOH solution? A. 9.13 B. None of these choices is correct. ROK C. 11.89 D. 4.87 18. What is the [O1I] for a solution at 25°C that has [Hs0]- 1.22 x 103 M? A. 8.20E-5 M B. 8.20E-12 M C. 1.22E-11 M D. None of these choices is correct. E. 1.22E-17 M 19. What is the pH of a 0.30 M solution of NHC1? [Kb(NHs) 1.8 x 10-1 A. 4.63 B....
What is the H O concentration in 7.1 x 10 7.2x 10-17 M b. 1.4 x 10-12 M c. 2.9 x 103M 10. M NaOH(aq) at 25 °C? (Kw 1.01 x 104) а. d. 12 M 7.0 x 10" M е.
What is the pH of a 8.6 x 10-8 M solution of HCl(aq) at 25 °C? Report your answer to the hundredths place. pH = Assuming complete dissociation, what is the pH of a 3.98 mg/L Ba(OH), solution? pH = X10 Assuming equal concentrations, arrange these solutions by pH. Highest pH Lowest pH Answer Bank HCIO, (aq) Cabr,(aq) NaCN(aq) CH, NH, Br(aq) RbOH(aq)
23, (4 points) Calculate the pH of a 2.6 × 10-2 M solution of KOH (aq). A. 12.41 B. 15.59 C. 2.06 D. 7.00 E. 1.59
1) Determine the Kb for CN at 25°C The K, for HCN is 49. 10-10 A) 3.7 10-7 B) 23 , 10-9 14 x 10-5 D) 49 10-14 E) 20 - 10-5 2 ) 2) Calculate the solubility (in g/L) of calcium fluoride in water at 25°C if the Ksp for Ca F2 is 1.52 10-10 A) 96 10-4 gł B ) 26 x 10-2 g/L. C) 4.1 10-2 g/L D) 3.3 * 10-2 g/l 3) in the reaction C&HCl(aq)...
estion 10 What is the pH of 5.69 * 10-2 M HNO 3(aq)? a. 2.54 b.5.65 c. 1.80 O d. 1.24 e.-1.01