Question

In: Chemistry

Iodine and bromine react to give iodine monobromide, IBr I2+Br2 is in equilibrium to yield 2IBr...

Iodine and bromine react to give iodine monobromide, IBr

I2+Br2 is in equilibrium to yield 2IBr

What is the equilibrium composition of a mixture at 115°C that initially contained 1.30 x 10 to the negative third 1.30 mol each of iodine and bromine in a 5.00 L vessel? The equilibrium constant Kc for this reaction at 115°C is 55.8.

I2 = M ?

Br2= M ?

IBr= M ?

Solutions

Expert Solution

            I2   +    Br2 ------------->2IBr

I         0.0013   1.3                     0

C         -x            -x                    2x

E        0.0013-x   1.3-x               2x

[I2] = 0.0013-x/5

[Br2]   = 1.3-x/5

[IBr]   = 2x/5

       Kc   = [IBr]^2/[Br2][I2]

        55.8   = (2x)^2/(0.0013-x)(1.3-x)

       55.8*(0.0013-x)(1.3-x)   = 4x^2

            x   = 0.00129

      [I2] = 0.0013-x/5   = 0.0013-0.00129/5   = 0.000002M

      [Br2]   = 1.3-x/5      = 1.3-0.00129/5   = 0.259M

       [IBr]   = 2x/5          = 2*0.00129/5        = 0.000516M

queen_honey_blossom answered 2 years ago
Next > < Previous

Related Solutions

A-Calculate the equilibrium concentration of IBr and I2 for the reaction 2 IBr(g) ⇄ I2 (g)...
A-Calculate the equilibrium concentration of IBr and I2 for the reaction 2 IBr(g) ⇄ I2 (g) + Br2 (g) when the initial [IBr] = 1.00 M and the concentrations of the products is initially zero. (KC = 2.50x10-3) [IBr]equilibrium = _______________ [I2]equilibrium =_______________ B- KC = 1.88x10-14 for the reaction CH3NC(g) ⇄ CH3CN(g). If the initial concentrations are [CH3NC] = 0.122 M and [CH3CN] = 0.244 M, what is the equilibrium concentration of CH3CN? [CH3CN] = _______________ M
Consider the following reaction and its equilibrium constant: I2(g) + Br2(g) 2 IBr(g) Kc = 1.1...
Consider the following reaction and its equilibrium constant: I2(g) + Br2(g) 2 IBr(g) Kc = 1.1 × 102 This reaction mixture contains initially 0.41 M I2 and 0.27 M Br2. Calculate the equilibrium concentration of I2, Br2, and IBr? Please help with this, Can I find a example similar to this anywhere. I can't figure out some of the parts of this problem.
For the equilibrium 2IBr(g)?I2(g)+Br2(g) Kp=8.5×10?3 at 150 ?C. A) If 2.1×10?2 atm of IBr is placed...
For the equilibrium 2IBr(g)?I2(g)+Br2(g) Kp=8.5×10?3 at 150 ?C. A) If 2.1×10?2 atm of IBr is placed in a 2.0-L container, what is the partial pressure of IBr after equilibrium is reached? Express your answer to two significant figures and include the appropriate units. B) If 2.1×10?2 atm of IBr is placed in a 2.0-L container, what is the partial pressure of I2 after equilibrium is reached? Express your answer to two significant figures and include the appropriate units. C) If...
The equation for the reaction of propyne (C3H4) with bromine (Br2) to give tetrabromopropane (C3H4Br4) is...
The equation for the reaction of propyne (C3H4) with bromine (Br2) to give tetrabromopropane (C3H4Br4) is given below C3H4 + 2 Br2 → C3H4Br4 In a reaction, 4.00 g of propyne are mixed with 31.0 g of bromine. a) Which is the limiting reagent, propyne or bromine? Show all calculations. b) What is the theoretical yield of tetrabromopropane in grams? Show all calculations. c) If 13.1 g of tetrabromopropane is produced, what is the percent yield of this reaction? Show...
The equation for the reaction of propyne (C3H4) with bromine (Br2) to give tetrabromopropane (C3H4Br4) is...
The equation for the reaction of propyne (C3H4) with bromine (Br2) to give tetrabromopropane (C3H4Br4) is given below C3H4 + 2 Br2 → C3H4Br4 In a reaction, 4.00 g of propyne are mixed with 31.0 g of bromine. a) Which is the limiting reagent, propyne or bromine? Show all calculations. [4 pts] b) What is the theoretical yield of tetrabromopropane in grams? Show all calculations. [3 pts] c) If 13.1 g of tetrabromopropane is produced, what is the percent yield...
Zinc, Zn, adn iodine, I2, react to form zinc(II) iodide, ZnI2 ( the reactants and the...
Zinc, Zn, adn iodine, I2, react to form zinc(II) iodide, ZnI2 ( the reactants and the product are all solids at room temperature). a. write a balanced chemical reaction for this process. b. suppose that 50.0 g of zinc and 50.0 g of iodine are used to form zinc(II) iodide. 1. assuming that the reaction goes to completion, which element will be totally consumed in the formation of the zinc(II) iodide? 2. what is the limiting reagent? 3. how many...
Alkyl bromides react with sodium iodine (Nal) to yield alkyl iodides by a reaction that is...
Alkyl bromides react with sodium iodine (Nal) to yield alkyl iodides by a reaction that is a biomolecular nucleophillic substitution. Which compound will react faster: tert-butyl bromide or methyl bromide?
The dissociation of molecular iodine into iodine atoms is represented as I2(g) ⇌ 2I(g)
The dissociation of molecular iodine into iodine atoms is represented as I2(g) ⇌ 2I(g) At 1000 K, the equilibrium constant Kc for the reaction is 3.80 × 10−5. Suppose you start with 0.0461 mol of I2 in a 2.27−L flask at 1000 K. What are the concentrations of the gases at equilibrium?What is the equilibrium concentration of I2?MWhat is the equilibrium concentration of I?M
The following equilibrium is exothermic. How could the yield of diiodine pentoxide be increased? I2(g) +...
The following equilibrium is exothermic. How could the yield of diiodine pentoxide be increased? I2(g) + 5CO2(g) < --> 5CO(g) + I2O5(g) A. by decreasing the pressure B. by increasing the pressure C. by decreasing the volume of the reaction vessel D. by decreasing the temperature E. by increasing the temperature
The vapor pressure of liquid bromine (Br2) at 9.30 °C is 100.0 torr and enthalpy of...
The vapor pressure of liquid bromine (Br2) at 9.30 °C is 100.0 torr and enthalpy of vaporization is 30.91 kJ/mole. Calculate the normal boiling point of Br2. Be sure to enter a unit with your answer.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT