26. Calculate the molar concentration of uncomplexed Cu2+(aq) in a solution that contains 0.23 mol of...
15. What is the concentration of Cu2+ in a solution made by dissolving 0.100 mole of CuSO4 and 2.00 moles of NH3 in 500.0 mL of aqueous solution? Cu forms the complex ion Cu(NH3)42+ K = 4.8 x 1012
Calculate the equilibrium molar concentration of free Zn2+(aq) in a solution that contains 0.021 mol of Zn2+ per liter to which 0.498 mole of NH3 is added. Kf for Zn(NH3)42+ is 2.9x109. Show the equilibrium equation.
What is the concentration of Cu2+ (aq) in a solution that was originally 0.015 M Cu(NO3)2 and 0.1M NH? The Cu2+ ion forms the complexion Cu (NH3)42-K-4,9x10 12 Show your calculations.
What is the OH ion concentration in a 4.8 x 10-2 M KOH solution? 2.1 x 10-13 M 4.8 x 10-2 M 1.0 x 10-7 M 4.8 x 10-12 M What is E' for the following balanced reaction? Fe(s) + Cu2+(aq) Fe2+ (aq) + Cu(s) Standard Reduction Potential Half-reaction Fe2+ (aq) + 2e Fe(s) Cu2+ (aq) + 2e Cu(s) -0.44 40.34 O +.010 +0.78 0 -0.78 -0.1
Question Completion Status: QUESTION 10 Select the Lewis acid and Lewis base in this reaction. Cu2+(aq) + 6 NH3(aq) - Cu(NH3162 (aq) Cu2+ is the Lewis acid, and NH3 is the Lewis base, NH3 is a base, but there is no acid NH3 is the Lewis acid, and Cu?" is the Lewis base None of the above QUESTION 11 The following combination of species will result in buffer solution a. HCO3 and cog-2 True False QUESTION 12 The complex lon...
5) The molecular complex Cu(CN)42- dissociates in water by the process Cu(CN) + (aq) = Cu2+ (aq) + 4 CN- Kc = 9.5 x 10-17 The initial concentration of Cu(CN)4- in an aqueous solution is 0.0390 M. No Cu?" or CN ions are initially presen. What is the concentration of Cu2+ ion present when equilibrium is achieved? [12 points)
1.Given a solution in which [Cu2+] = 0.20 mol/L and [NH3] = 1.40 mol/L, what is the equilibrium concentration of free Cu2+? The complex Cu(NH3)42+ has Kf = 5.0 X 1013. The answer to the question is 3.1 X 10 -14 I just need how to do it with the work shown. 2. You titrate a 20.00 mL sample of ammonia (Kb = 1.8 X 10-5) to the equivalence point using 10.00 mL of .20 M HCl solution. What is...
What equilibrium molar concentration of NH3 provides a hydroxide ion concentration of 1.5 x 10−3 M ? (Ka for NH4+ is 5.6 x 10−10) 0.40 M 0.13 M 1.1 M 0.83 1.9 M
What is the concentration of the Cu²⁺(aq) ion in a 0.015 M Cu(NO₃)₂ solution that is also 1.0 M NH₃? The Kf for Cu(NH₃)₄²⁺ = 4.8 x 10¹² .
2+ What is the concentration of Co (aq) ions in the solution made by adding water to cobalt(II) nitrate (0.50 mol) and ethylenediamine (3.0 mol) so that the final volume of solution is 3.0 L? The Kstab of [Co(en)s]2 is 1.0 x 1014 4. а) 1.3 х 10-14м 15 b) 1.5 x 10 M 15 М c) 2.9 x 10 15 d) 3.3 x 10 -16 e) 8.7 x 101 M 2+ What is the concentration ofZn (aq) ions in...