The solubility products of CaCO3 and FeCO3 are 4.5 x 109 and 2.1 x 10 11 respectively. Part A Calculate the ratio of [Ca²+] to [Fe²+ ] in a lake in which the water is in equilibrium with deposits of both CaCO3 and FeCO3. Assume that the water is slightly basic and that the hydrolysis of the carbonate ion can therefore be ignored. Express your answer using two significant figures. |C₂² Submit VG ΑΣΦ Request Answer ^ → ?

The solubility products of CaCO3 and FeCO3 are 4.5 x 109 and 2.1 x 10 11 respectively. Part A Calculate the ratio of [Ca²+] to [Fe²+ ] in a lake in which the water is in equilibrium with deposits of both CaCO3 and FeCO3. Assume that the water is slightly basic and that the hydrolysis of the carbonate ion can therefore be ignored. Express your answer using two significant figures. |C₂² Submit VG ΑΣΦ Request Answer ^ → ?

General Chemistry - Standalone book (MindTap Course List)

11th Edition

ISBN:9781305580343

Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Chapter17: Solubility And Complex-ion Equilibria

Section: Chapter Questions

Problem 17.104QP: Crystals of AgBr can be removed from black-and-white photographic film by reacting the AgBr with...

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Crystals of AgBr can be removed from black-and-white photographic film by reacting the AgBr with sodium thiosulfate. AgBr(s)+2S2O32(aq)[Ag(S2O3)2]3(aq)+Br(aq) a What is the equilibrium constant for this dissolving process? b In order to dissolve 2.5 g of AgBr in 1.0 L of solution, how many moles of Na2S2O3 must be added?
Write an overall net ionic equation and calculate K for the reaction where Co(OH)2(Ksp=21016) is dissolved by HCI.
of TH When a 26.5 mL sample of a 0.361 M aqueous nitrous acid solution is titrated with a 0.478 M aqueous barium hydroxide solution (1) What is the pH at the midpoint in the titration? (2) What is the pH at the equivalence point of the titration? (3) What is the pH after 15.0 ml of barium hydroxide have been added?
you want to separate Ni2+ and Mn2+ by precipitating the corresponding sulphidesfrom each other. What pH value must you set so that one of the twometals is precipitated quantitatively (concentration in the solution less than/equal to 10/-5 mol/l)is precipitated while the other is still in solution? Ksp (NiS): 10^-21, Kps (MnS): 10~15; Ks (H2S): 10 ~- 20,Saturation concentration of H2S in water: 0.1 mol/l
Practice Exercise 16.15 If 2.13 g of Cuso4 are dissolved in 9.0 x 102 mL of 0.30 M NH3, what are the concentrations of Cu2+, Cu(NH3)42+, and NH3 at equilibrium? [Cu²+] 4.0 [Cu(NH3)4²+] g) M [NH3] 4.0 M
What is the pH of a buffer that is .1 Molar in H2CO3 and 1M in NaHCO3?
What is the pH of the buffer that results when 3.06 g of NagHPO, and 2.17 g of NaHPO, are diluted with water to a volume of 0.3 L? (K, of H,PO,-6.2 x 10, the molar masses of NaH,PO, and Na;HPO, are 120.0 g/mol and 142.0 mol, respectively)
Ammonia is a convenient buffer system in the slightly basic range. (a) What is the pH of a buffer solution containing 49 g of NH,CI dissolved in 1.00 L of 0.919 M NH3? pH = (b) How many moles of acid are required to change the pH of this solution by 0.05 pH units? mol (c) Suppose 4.6 mL of 12.6 M HCI solution is added to 471 ml of the solution of Part (a). Calculate the new pH. pH =
22. Which of the following will give a buffer solution when equal volumes of the two solutions are mixed? (a) 0.10 M HNO, and 0.10 M NaNO, ( b) 0.10 M HC,H,O, and 0.10 M Nac,H,O, (c) 0.10 M HC,H;O, and 0.20 M NaOH (d) 0.10 M HI and 0.20 M NaBr
If H+ ion is added to a reaction where: AgC2H3O2(s) + Cl-(aq) becomes AgCl(s) + C2H3O2-(aq), would more AgCl precipate? I am not sure if H+ ion would react with Cl- ion in the reaction. Calculated K for the reaction above is 1.1 times 107.
18. What is the molar solubility of AgBr in 0.25 M NH3 at 25 oC? Use the given information attached:
11 (a) Define a buffer solution (b) What are the components of (i) an acidic buffer ? (ii) a basic buffer ?

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