![D. Questions: Common Ion Effect on a Chemical System Common Ion Effect on a Chemical System - Fe3+(aq) + SCN (aq) [Fe(SCN)]2+](http://img.homeworklib.com/questions/5fe38b20-a5fc-11eb-babd-9fd8b057793c.png?x-oss-process=image/resize,w_560)
Homework Answers
Answer 1:
- This is based on the Le chatelier's principle.
- The color of Fe3+ ions is yellow while that of SCN- is colorless.
- The colour of the iron thiocynate complex is deep blood red.
- Therefore, here the evidence of the shift in equilibrium is provided by a color change.
- If the equilibrium shifts to the right a deeper red color will be seen while if it shifts to the left, a lighter red color will be observed.
Answer b:
- Iron(3)Chloride will give Fe3+ ions.
- Therefore, the additional Fe3+ will disturb the equilibrium as now it is in a higher concentration than it should be at equilibrium.
- Therefore, the equilibrium shifts to the right to reduce the concentration of iron ions and increase the concentration of the complex.
Answer c:
- As explained above, the stress created on the system is due to the Fe3+ ions.
Thank You!
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D. Questions: Common Ion Effect on a Chemical System Common Ion Effect on a Chemical System...
PLEASE HELP ME! ASAP PLEASE!! If you need anymore information, please ask. This is what we...
PLEASE HELP ME! ASAP PLEASE!! If you need anymore information,
please ask. This is what we were given and I am having trouble!
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prelab /postlab all questions please
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Hi there Im having trouble with the last question on my lab report sheet. Would both...
Hi there
Im having trouble with the last question on my lab report sheet.
Would both equations be considered correct because they share the
common ion effect? Please explain; thank you in advance!!
Section E: Thiocyano-iron III Complex Ion: Fe + SCN = FeSCN2+ Yellow red Stress to system Observation Shift CIE or Chem Rx Add 0.2M Fe(NO3)3 Solution fums right Fe3+ + 3NO₂ darker red CIE Add 0.1M KSCN solution turns K + SON darker red right CIE Add...
PLEASE HELP ME! ASAP PLEASE!! If you need anymore information,
please ask. This is what we were given and I am having trouble!
1) Saturated Sodium Chloride Solution Equilibrium System: Observations upon addition ofHCI: white precipitate In which direction did this stress cause the equilibrium system to shif? Left or Right Which ion caused the shift? Explain. 2) Acidified Chromate Solution Equilibrium System: Observations upon addition ofHNO:: solution becomes orange Left or Right In which direction did this stress cause...
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Questions 1. For the reaction at 20°C, NH3(aq) + H+ (aq) NH4(aq), the equilibrium constant is calculated to be K = to 4.5 x10%. CHAT] A. Write the Equilibrium expression for this reaction. Keq = ỞNH TH] B. From the size of the number for Keq, does the equilibrium lie to the left or to the right? Right 2. If the reaction between iron(III) ion and thiocyanate ion, Fe3+ (aq) + SCN (aq) → FeSCN2+(aq),...
In this experiment, we will be studying the reaction of the iron(III) ion with the thiocyanate ion to form the red-colored complex ion pentaaquathiocyanatoiron(III), [Fe(H20)s(SCN)]?". As we will learn later, the Fetion in water is actually better represented as a complex ion with 6 water molecules attached to the central iron, [Fe(H20)] (aq). The SCN ion replaces one of the water molecules attached to the Fe" in the following reaction. [Fe(H2O).] (aq) + SCN (aq) [Fe(H2O)(SCN)]2(aq) + H2O(1) AH° (-)...
1. For the following reaction N2 (g) + 3 H2(g) — 2 NH3(g) AH° = -92.4 kJ K = 1.245 x 10-5 at 427°C for each change listed, predict the equilibrium shift and the effect on the indicated quantity. Direction of Shift Gt; or no change) Effect on Quantity Change Effect (increase, decrease, or no change) amount of NH3(g) amount of N2(g) (a) decrease in volume (b) Decrease temperature (c) addition of H2(g) (d) addition of NH3(g) (e) removal of...
2. If the reaction between iron(III) ion and thiocyanate ion yielded an equilibrium concentration of 0.30 M for each of these ions, what is the equilibrium concentration of the red iron(III)-thiocyanate complex? (Hint: The equilibrium constant for the reaction is in the Background section.) Show your work 3. In the reaction below, NH3(g) + H2O(1) - NH; +H30+ the equilibrium constant is 10-34. Is this reaction likely to take place? Explain your answer. iron(III) and thiocyanate ions, the equilibrium expression...
The common ion effect can be applied to a solution of lead thiocyanate when potassium thiocyanate is added. Since there is a common ion, the cyanate ion, the molar solubility of lead thiocyanate goes down in the presence of potassium thiocyanate Calculate the molar solubility of lead thiocyanate in 0.500 M KSCN Express your answer with the appropriate units. Lead thiocyanate, Pb(SCN)2, has a Ksp value of 2.00 x 10 5
in the Chemical Equilibrium experiment, the effect of
interacting equilibria was studied using the following chemical
reactions. Addition of which species will cause the primary
equilibrium to shift to the right? Select any/all that apply.
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Hi there
Im having trouble with the last question on my lab report sheet.
Would both equations be considered correct because they share the
common ion effect? Please explain; thank you in advance!!
Section E: Thiocyano-iron III Complex Ion: Fe + SCN = FeSCN2+ Yellow red Stress to system Observation Shift CIE or Chem Rx Add 0.2M Fe(NO3)3 Solution fums right Fe3+ + 3NO₂ darker red CIE Add 0.1M KSCN solution turns K + SON darker red right CIE Add...
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