When solutions containing Fe3+(aq) ions and SCN−(aq) ions are mixed together, the following equilibrium is established:...
When solutions containing Fe3+(aq) ions and SCN−(aq) ions are mixed together, the following equilibrium is established: Fe3+(aq)+SCN−(aq)⇌FeSCN2+(aq) At equilibrium at some temperature, in 3.0 liters of total solution, there are 0.653 moles of FeSCN2+(aq), 0.0385 moles of Fe3+(aq) and 0.0465 moles of SCN−(aq) . What is K?
Homework Answers
Add Answer to:
When solutions containing Fe3+(aq) ions and SCN−(aq) ions are
mixed together, the following equilibrium is established:...
1) Consider the following equilibrium: Fe3+(aq) + SCN-(aq) ⇌ FeSCN2+(aq) Initial concentrations: [Fe3+] = 0.590; [SCN-]...
1) Consider the following equilibrium: Fe3+(aq) + SCN-(aq) ⇌ FeSCN2+(aq) Initial concentrations: [Fe3+] = 0.590; [SCN-] = 1.239; [FeSCN2+] = 0 The equilibrium concentration of [FeSCN2+]eq = 0.454 M. What is the numerical value of KC for this equilibrium? KC = __________________ 2) Consider the following equilibrium: Fe3+(aq) + SCN-(aq) ⇌ FeSCN2+(aq) Initial concentrations: [Fe3+] = 0.370; [SCN-] = 0.777; [FeSCN2+] = 0 The equilibrium concentration of [FeSCN2+]eq = 0.285 M. What is the equilibrium concentration of Fe3+? [Fe3+]eq =...
Equilibria can be treated mathematically with the equilibrium constant, K. For the reaction Fe3+ + SCN...
Equilibria can be treated mathematically with the equilibrium
constant, K. For the reaction Fe3+ + SCN − equilibrium reaction
arrow FeSCN2+, the equilibrium constant expression is [FeSCN2+ ] K
= [Fe3+ ] · [SCN − ] where, for example, [Fe3+ ] is the molar
concentration (mol Fe3+ / L solution) present in an equilibrium
mixture. At some temperature, a chemist found the following
equilibrium concentrations. [Fe3+ ] = 8.17 ✕ 10−3 M, [SCN − ] =
8.60 ✕ 10−3 M,...
Consider the following reaction: Fe3+(aq)+SCN−(aq)⇌FeSCN2+(aq) A solution is made containing an initial [Fe3+] of 1.2×10−3 M...
Consider the following reaction: Fe3+(aq)+SCN−(aq)⇌FeSCN2+(aq) A solution is made containing an initial [Fe3+] of 1.2×10−3 M and an initial [SCN−] of 8.2×10−4 M . At equilibrium, [FeSCN2+]= 1.8×10−4 M . Calculate the value of the equilibrium constant (Kc)(Kc). Express your answer using two significant figures.
Calculate the equilibrium constant for the reaction Fe3+ (aq0 + SCN (aq)→ FeSCN2+ (aq) given that...
Calculate the equilibrium constant for the reaction Fe3+ (aq0 + SCN (aq)→ FeSCN2+ (aq) given that the mixture of 5 ml of.00359 M SCN- and 5 ML of .00200 M Fe3+ solutions yield 1.68 x 10A- 4 M FeSCN2+ at a given temperature. a.) 23 . B.) 93 d. 8.06 x 10A-3 c.) 124
Consider the reaction represented by the equation: Fe3+ (aq) + SCN- (aq) FeSCN2+ (aq) What is...
Consider the reaction represented by the equation: Fe3+ (aq) + SCN- (aq) FeSCN2+ (aq) What is the equilibrium concentration of FeSCN2+ (aq) if a solution is prepared that is initially 6.00 M Fe3+ (aq) and 6.00 M SCN− (aq)? if k was determined to be 0.333
2. The reaction Fe3+ (aq) + SCN (aq) → FeSCN2+ (aq) produces a dark red color...
2. The reaction Fe3+ (aq) + SCN (aq) → FeSCN2+ (aq) produces a dark red color resulting from the formation of FeSCN2+. a. How does the color change if you add more SCN to a solution at equilibrium? (lighter or darker) b. How does the color change if you remove Fe3+ by reacting it with fluoride ions? c. If a reaction proceeds forward when you heat it, and reverse when you cool it, the reaction is [endothermic exothermic).
* PLEASE WRITE OUT ANSWER STEP BY STEP! CONSIDER THE FOLLOWING REACTION: Fe3+(aq)+SCN−(aq)⇌FeSCN2+(aq) A solution is...
* PLEASE WRITE OUT ANSWER STEP BY STEP! CONSIDER THE FOLLOWING REACTION: Fe3+(aq)+SCN−(aq)⇌FeSCN2+(aq) A solution is made containing an initial [Fe3+] of 1.2×10−3 M and an initial [SCN−] of 8.2×10−4 M. At equilibrium, [FeSCN2+] = 1.6×10−4 M . PART A: Calculate the value of the equilibrium constant (Kc): [Express your answer using two significant figures] KC = _____________________________
A 25.0 mL volume of 0.0200 M Fe(NO3)3 is mixed with 50.0 mL of 0.00200 M...
A 25.0 mL volume of 0.0200 M Fe(NO3)3 is mixed with 50.0 mL of 0.00200 M NaSCN and 25.0 mL of 0.100 HNO3. The blood-red FeSCN2+ ion forms and the equilibrium is established: Fe3+(aq) + SCN-(aq) <---> FeSCN2+(aq) The equilibrium concentration of FeSCN2+ ([FeSCN2+]) was measured spectrophotometrically and found to be 7.0 x 10-4 mol/L. To calculate the equilibrium constant (Kc) for thr equilibrium system, proceed through the following steps: A. Moles of Fe3+, initial B. Moles of SCN-, initial...
After the preparation of a solution with solutions containing Fe3+ and SCN- respectively, the final solution...
After the preparation of a solution with solutions containing Fe3+ and SCN- respectively, the final solution has a concentration of Fe(NCS)2+ 5.0x10-4 M, 1.0x10-3 M Fe3+ and 5.0x10-3 M SCN-. Calculate Kc for the following reaction. Fe3+ (aq) + SCN- (aq) ↔ Fe(NCS)2+ (aq) a. 80 b. 100 c. 0.01 d. 0.001
Fe (aq)SCN-(aq) FeSCN (aq) thiocyanate iron(II) thiocyanoiron(il) Introduction When the reactants shown above, are combined, chemical...
Fe (aq)SCN-(aq) FeSCN (aq) thiocyanate iron(II) thiocyanoiron(il) Introduction When the reactants shown above, are combined, chemical equilibrium is reached rapidly. Once equilibrium is established, the equilibrium constant can be calculated if the concentration of all the ions are known: [FeSCNP.he [SCN-... and (Feng Your task is to prepare three different equilibrium systems that contain different concentrations of these ions. Keep in mind that although the concentrations will be different, the value of the equilibrium constant Ke will be indeed constant...
Equilibria can be treated mathematically with the equilibrium
constant, K. For the reaction Fe3+ + SCN − equilibrium reaction
arrow FeSCN2+, the equilibrium constant expression is [FeSCN2+ ] K
= [Fe3+ ] · [SCN − ] where, for example, [Fe3+ ] is the molar
concentration (mol Fe3+ / L solution) present in an equilibrium
mixture. At some temperature, a chemist found the following
equilibrium concentrations. [Fe3+ ] = 8.17 ✕ 10−3 M, [SCN − ] =
8.60 ✕ 10−3 M,...
Calculate the equilibrium constant for the reaction Fe3+ (aq0 + SCN (aq)→ FeSCN2+ (aq) given that the mixture of 5 ml of.00359 M SCN- and 5 ML of .00200 M Fe3+ solutions yield 1.68 x 10A- 4 M FeSCN2+ at a given temperature. a.) 23 . B.) 93 d. 8.06 x 10A-3 c.) 124
2. The reaction Fe3+ (aq) + SCN (aq) → FeSCN2+ (aq) produces a dark red color resulting from the formation of FeSCN2+. a. How does the color change if you add more SCN to a solution at equilibrium? (lighter or darker) b. How does the color change if you remove Fe3+ by reacting it with fluoride ions? c. If a reaction proceeds forward when you heat it, and reverse when you cool it, the reaction is [endothermic exothermic).
Fe (aq)SCN-(aq) FeSCN (aq) thiocyanate iron(II) thiocyanoiron(il) Introduction When the reactants shown above, are combined, chemical equilibrium is reached rapidly. Once equilibrium is established, the equilibrium constant can be calculated if the concentration of all the ions are known: [FeSCNP.he [SCN-... and (Feng Your task is to prepare three different equilibrium systems that contain different concentrations of these ions. Keep in mind that although the concentrations will be different, the value of the equilibrium constant Ke will be indeed constant...
Most questions answered within 3 hours.
-
1. What is the present value of $400, three years in the future
if the interest...
asked 42 minutes ago -
For the following reaction, 0.128 moles of
potassium hydrogen sulfateare mixed with
0.504 moles of potassium...
asked 9 minutes ago -
The labor force minus the number of employed equals the number
of unemployed.
a. True
b....
asked 2 hours ago -
Determine the mass in units of grams [g] of 0.49 moles [mol]
of a new fictitious...
asked 3 hours ago -
A horizontal mass of M=5kg is on a spring and stretched to
x=0.5m when released from...
asked 4 hours ago -
26 of 50
"I have worked at the Arizona Humane Society for ten years, and
have...
asked 4 hours ago -
Compare and contrast zero based budgeting and incremental (or
base year) budgeting.
asked 4 hours ago -
4 pts 10. Which of the following hypothesis would be MOST
difficult to test experimentally? Group...
asked 4 hours ago -
A business owner makes 1,000 items a day. Each day he or she
contributes eight hours...
asked 4 hours ago -
A
circular loop in the plane of a paper lies inca0.65 T magnetic
field pointing into...
asked 5 hours ago -
A business owner is trying to decide whether to buy, rent, or
lease office space and...
asked 5 hours ago -
Thermal Storage Solar heating of a house is much more efficient
if there is a way...
asked 5 hours ago