Vhich of the following is a CORRECT charge balance expression for a 0.10 M aqueous solution f[NH2(CH3)2]CI? bof NH(CH3)2 = 5.10 × 10–4 %3D ) [NH2(CH3)2*]+ [H3O*] = [CI]+ [OH'] D (NH2(CH3)2*] + [H3O*] = [OH"] ) [H30*] = [CI']+[OH°] ) [NH2(CH3)2] + [H3O*] = [CI]+ [OH']
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![Which of the following is a CORRECT charge balance expression for a 0.10 M aqueous solution
of [NH2(CH3)2]CI?
Kp of NH(CH3)2 = 5.10 × 10–4
O [NH2(CH3)2*]+[H3O*] = [CI] + [OH]
O [NH2(CH3)2*] + [H3O*] = [OH]
O [H30*] = [CI] + [OH']
O [NH2(CH3)2] + [H3O*] = [CI°]+ [OH]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1994b40d-f49e-4f40-9cfd-118a4a9a37e9%2Fae01fe75-4ebf-462f-b8b6-ecffddd47e80%2Fdpgeo72_processed.png&w=3840&q=75)
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- The equilibrium constant Ka for the reaction Co(H2O)63+ (aq) + H2O (l) ---> Co(H2O)5(OH)2+ (aq) + H3O+ (aq) is 1.0x10-5 A) Calculate the pH of a 0.16 M solution of Co(H2O)63+. pH = _________ B) Will a 0.60 M solution of cobalt(II) nitrate have a higher or lower pH than a 0.60 M solution of cobalt(III) nitrate? - higher- lower- same C) Co3+ complex ions are generally low-spin cases, whereas Co2+ complex ions are generally high-spin cases. Explain. The magnitude of for complexes of the same ligand _________(increases/decreases/does not change) as the charge on the metal ion increases. If this is the situation, how many unpaired electrons are present in Co(H2O)63+and Co(H2O)5(OH)2+? Co(H2O)63+: ________ unpaired electrons Co(H2O)5(OH)2+: ________ unpaired electronsWhat is the pH of a 0.05 M solution of CdSO4 if the KA value for [Cd(H2O)n] 2+ is 3x10-9 ? b. Write dissociation constant expression and predict pH (less or greater than 7) for Na2CO3 and CuCl2.From the value Kf=1.2×10^9 for Ni(NH3)6^2+, calculate the concentration of NH3 required to just dissolve 0.026 mol of NiC2O4 (Ksp = 4×10^−10) in 1.00 L of solution. (Hint: You can neglect the hydrolysis of C2O4^2− because the solution will be quite basic.)
- What is the concentration of Cd2+ in a 0.016 M Cd(NO3)2 solution that is also 1.0 M NH3? For Cd(NH3)42+, Kf = 1.0 x 107.If you want to use any of the [IrCl(CO)(PPh3)2] and [(η6-C6H6)Cr(CO)3] complexes as a catalyst in any organic reaction, which would you prefer? Please explain.Give evidence that [Co(NH3)5Cl]SO4 and [Co(NH3)5SO4]Cl are ionization isomers.(ii). Calculate magnetic moment for the [Fe(H2O)6]3+ and [Fe(CN)6]3−, which one show strong paramagnetic behavior- Explain?
- If 21.70 mL of 0.0500 M KMnO4 is required to titrate a 0.450 g sample of K3[Fe(C2O4)3]⋅3H2O, what is the percent C2O2−4C2O42− in the complex?Consider the coordination complex with the formula [CoBr(NH3)5]SO4. Identify the Lewis acid(s) and Lewis base(s) in the complex and explain how you made your choice(s). What is the coordination number for the transition metal cation in this complex? Explain how you know.Question This is the lab with my data sheet and please answer all of them. Thank you and please answer all of them. If you do it would be appreciated My data to support answers for questions. The equilibrium is Fe3+ + SCN- <--> [FeSCN]2+. The Fe3+ is a pale yellow colour and the complex ion product is red.Stresses:Add KSCN - turned deep redAdd Fe(NO3)3 - turned deep redAdd Na2CO3 - turned yellow/colourlessAdd NaOH - turned yellow/colourlessAdd NH3 - turned yellow/colourlessHeat - turned lighter orange colourCold - turned darker orange colour Conclusion: Describe why each shift occurred using proper terminology
- This is the lab with my data sheet and please answer all of them. Thank you and please answer all of them. If you do it would be appreciated My data to support answers for questions. The equilibrium is Fe3+ + SCN- <--> [FeSCN]2+. The Fe3+ is a pale yellow colour and the complex ion product is red.Stresses:Add KSCN - turned deep redAdd Fe(NO3)3 - turned deep redAdd Na2CO3 - turned yellow/colourlessAdd NaOH - turned yellow/colourlessAdd NH3 - turned yellow/colourlessHeat - turned lighter orange colourCold - turned darker orange colour Addition of NH3(aq) to test tube #6: As a result of the colour change, what can be concluded about the [FeSCN2+(aq)]? Explain. Explain why the addition of NH3(aq) affects the [FeSCN2+(aq)] as indicated in (a). Use chemical reaction in your explanation. Addition of heat/cold to test tube #7 & 8: As a result of the colour change, what can be concluded about the [FeSCN2+(aq)] when the temperature is increased? Explain. As a result of the colour…This is the lab with my data sheet and please answer all of them. Thank you and please answer all of them. If you do it would be appreciated My data to support answers for questions. The equilibrium is Fe3+ + SCN- <--> [FeSCN]2+. The Fe3+ is a pale yellow colour and the complex ion product is red.Stresses:Add KSCN - turned deep redAdd Fe(NO3)3 - turned deep redAdd Na2CO3 - turned yellow/colourlessAdd NaOH - turned yellow/colourlessAdd NH3 - turned yellow/colourlessHeat - turned lighter orange colourCold - turned darker orange colour Addition of heat/cold to test tube #7 & 8: As a result of the colour change, what can be concluded about the [FeSCN2+(aq)] when the temperature is increased? Explain. As a result of the colour change, what can be concluded about the [FeSCN2+(aq)] when the temperature is decreased? Explain. What can you conclude about the reaction (i.e. is it endothermic or exothermic) based on the above results?This is the lab with my data sheet and please answer all of them. Thank you and please answer all of them. If you do it would be appreciated My data to support answers for questions. The equilibrium is Fe3+ + SCN- <--> [FeSCN]2+. The Fe3+ is a pale yellow colour and the complex ion product is red.Stresses:Add KSCN - turned deep redAdd Fe(NO3)3 - turned deep redAdd Na2CO3 - turned yellow/colourlessAdd NaOH - turned yellow/colourlessAdd NH3 - turned yellow/colourlessHeat - turned lighter orange colourCold - turned darker orange colour Addition of Na2CO3(s) to test tube #4: d) Explain why the addition of Na2CO3(aq) affects the [FeSCN2+(aq)] as indicated in (a). Use a chemical reaction in your explanation. Addition of NaOH(aq) test tube #5: e) As a result of the colour change, what can be concluded about the [FeSCN2+(aq)]? Explain. f) Explain why the addition of NaOH(aq) affects the [FeSCN2+(aq)] as indicated in (a). Use a chemical reaction in your explanation.
