Whish solution has the highest pH?( A). 0.1M hcl (B.) 0.1M NH3 (C) 0.1 M Ba (D) 0.1M CH3COOH (E) 0.1M NaOH
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Whish solution has the highest pH?( A). 0.1M hcl (B.) 0.1M NH3 (C) 0.1 M Ba...
Which of the following solutions has the highest Boiling point? A. 0.1 m KCI OB. 0.1m CF4 C.0.1 CuCl2 D.0.1 m AlCl3 E. 0.1 m C2H60
(b) Another HCl solution is labeled -0.1 M. What do we know about the pH of this solution? (C) Suppose this sample is tested and the pH meter reads 0.87. Is there a problem with the pH meter or its calibration? Explain. (d) Suppose this same sample is tested and the pH meter reads 2.94. What should you do? 5. A titration of a 20.00 mL sample of 0.1097 M HCl requires 18.86 mL of NaOH to reach the equivalence...
pH LI Calculate the pH of the following solutions: Solution (a) 0.10 M CH3COOH 12.9 (b) 0.10 M NH3 Mixture of 25.00 mL of 0.10 M HCl + 25.00 mL of 0.10 NaOH Mixture of 20.00 mL of 0.10 M NaOH + 20.00 mL of 0.10 M CHCOOH (e) Mixture of 20,00 mL of 0.10 M HCI + 20.00 mL of 0.10 M NH; Saturated Mg(OH)2 (s) aqueous solution if water's dissociation is negligible K[CH3COOH) = 1.8x10-Kb [NH:] = 1.8*10-9;...
3. a) What will be the resultant pH for the solution when 20 mL of 0.1 M KOH is completely neutralized with 0.2 M of CH3COOH. (Ka of CH3COOH = 1.85 x10-5) b) What will be the pH when 20 mL of 0.1M CH3COOH was added later to the solution (a)?
Which one of the following solutions has the lowest pH? A. a 0.1 M solution of formic acid, HCOOH (Ka = 1.8 x 10-4) B. a 0.1 M solution of ammonium chloride, NH4Cl(s) (Ka (NH4+) = 5.6 x 10-10) C. a 0.01 M solution of acetic acid, CH3COOH (Ka = 1.8 x 10-5) D. a 0.01 M solution of formic acid, HCOOH (Ka = 1.8 x 10-4) E. a 0.1 M solution of acetic acid, CH3COOH (Ka = 1.8 x...
9.The pka of NH is 9.25. What is the highest pH that a buffer system composed of NH4 and NH3 will buffer at effectively? a) 13.25 b) 12.25 c) 11.25 d) 10.25 Which of the following mixtures is a buffer: a) 25mL 0.1M HF b) 25mL 0.1M HCI mixed with 25mL 0.1M NaOH. c) 25mL 0.1M NH3 mixed with 12.5mL 0.1M HCI. d) 25mL 0.1M NaF 11. The pH of LiOH was measured to be 11.53. Which of the following...
Question 4. a.) Calculate the pH of a solution initially 0.1 M in acetic acid and 0.02 M in sodium acetate. The pKa for acetic acid is 4.76. b) Calculate the pH of the buffer if you add 10 ml of 0.1M HCl to 100 ml of the buffer in part a.
The titration of 50.00 mL solution of a 0.1 M OAc- with 0.2 M HCl. OAc- is a weak base. Ka for acetic acid = 1.75 * 10^-5. a) Calculate the pH of the 50.0 mL of 0.1 M OAc- solution before the addition of any HCl. b) Calculate the pH of the resulting solution after the addition of 5.0 mL of 0.2 M HCl to the 50.0 mL of 0.1 M OAc- solution. c) Calculate the pH of the resulting...
Which of the following has the highest conductivity Pure Water 0.1 M Ba(OH)2 solution 0.5 M Ba(OH)2 solution Air Which conductivity point is the equivalence point of the reaction? H2SO4 +Ba(OH)2 à BaSO4 + 2 H2O The lowest conductivity point The highest conductivity point The start point None of above
22. What is the hybridization on carbon in C2H2? C) sp E) sp3d2 D) sp3d A) sp3B) sp2 23. What is the pH of a 1.0x 109 M solution of HCI? 24. What is the pH of a 0.1 M aqueous solution of NaOH? 25. Which compound will form an acidic solution when dissolved in water? F) Ba(CH3COO)2 E)Ca(NO3)2 D) Kl С) NaCl B) KNO2 A) NHcl 22. What is the hybridization on carbon in C2H2? C) sp E) sp3d2...