Search: chemistry - equilibrium Help

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chemistry
Concerning the following reaction at equilibrium: 3Fe(s) + 4H2O(g) Fe3O4(s) + 4H2(g), increasing the concentration of the Fe(s) would: Answer A. Shift the equilibrium to the right B. Shift the equilibrium to the left C. No change D. Increase the value of the equilibrium ...
Saturday, July 21, 2012 at 11:21pm by ken

Chemistry
Which of the following statements is a false statement concerning characteristics of chemical equilibrium? a. Equilibrium is dynamic. b. For a specific reaction at a specific temperature, the equilibrium state will be dependent of the direction of approach to equilibrium. c. ...
Thursday, November 18, 2010 at 5:22pm by Carla

chemistry
For the reaction at equilibrium: 3Fe(s) + 4H2O(g) Fe3O4(s) + 4H2(g), removing some of the product, Fe3O4(s), would: Answer A. Increase the value of the equilibrium constant, K B. No change C. Decrease the value of the equilibrium constant, K D. Shift the equilibrium to the ...
Saturday, July 21, 2012 at 11:21pm by ken

chemistry
Determine the expression for the equilibrium constant for this equilibrium reaction: 2NO(g) + 2CO(g) (arrows)(in equilibrium with) N2(g) + 2CO2(g) PLease help anyone i really apreciate it Beccy
Saturday, January 8, 2011 at 8:35am by rebecca niles

Chemistry
SO this is my first time doing this... lol i need help on an AP chemistry question for equilibrium. A 0.500 L tank contains 3.00 g of NO(g) at 750. K. The equilibrium constant for the reaction below at this temperature is 3.4 x 10 -3 2NO(g) ⇌ N2(g) + O2(g) (a) write ...
Monday, April 9, 2012 at 8:56pm by Sam

chemistry
The equilibrium constant Kp for the following equilibrium is 33 at 298 K. What is the value of Kc at this same equilibrium at 298 K
Sunday, November 4, 2012 at 10:31pm by Brun

chemistry
An equilibrium mixture contains N2O4, (P= 0.30 ) and NO2 (P= 1.1 ) at 350 K. The volume of the container is doubled at constant temperature. Calculate the equilibrium pressure of when the system reaches a new equilibrium. Calculate the equilibrium pressure of NO2 when the ...
Thursday, May 20, 2010 at 9:42pm by Anonymous

Chemistry
Consider the equilibrium 2NOCl (g) <---> 2NO (g) + Cl2 (g). In a 1 L container @ equilibrium there are 1.0 mol NOCL, 0.70 mol NO, and 0.40 mol Cl2. @ constant temperature and volume, 0.10 mol NaCl is added. What are the concentrations in the "new" ...
Saturday, April 13, 2013 at 2:52pm by Anna

chemistry
following equilibrium system with a Kc of 1.23E-03: C3H6O (aq) + 2C2H6O (aq)--> C7H16O2 (aq) + 2H2O (l) 1.What is the equilibrium expression for this system? 2.If the molar concentrations of C3H6O2 and C2H6O are both 0.255 at equilibrium, what is the equilibrium ...
Sunday, April 22, 2012 at 11:45pm by cateye

Chemistry
Consider the reversible reaction: A(g)-2B(g)At equilibrium, the concentration of A is 0.381 M and that of B is 0.154 M. What is the value of the equilibrium constant, Keq?
Tuesday, November 29, 2011 at 8:15pm by Chemistry Chick

Chemistry (conceptual question)
If you have a soln of HNO2 at equilibrium HNO2 (aq) + H20 (l) <-->H3O+ (aq) + NO2- (aq) and water is added, is there a shift in the equilibrium? Can someone explain why to me? I have a hard time understanding the concept of equilibrium and what is part of the ...
Friday, February 19, 2010 at 1:23am by Tommy

chemistry 30 concentration of a product
calculate the concentration of the products of the following equilibrium when the equilibrium constant is 12.3 and the equilibrium concentration of nobr2 is 2.17 mol/l
Tuesday, November 6, 2012 at 9:18pm by Tara

Chemistry
Which of the following statements are incorrect? 1) Gases are not included in the equilibrium constant expression. 2) Equilibrium constant can be increased by adding a catalyst 3) Large equilibrium constant favors reactants 4) Equilibrium is typically achieved in a very short ...
Saturday, March 17, 2012 at 7:01pm by David

chemistry
balance:H2(g)+S2(g)------->H2S(G)+heat A.) how would the equilibrium be affected give the following: - increase in temperature - increase in hydrogen concentration - increase in reaction container of volume B.) is equilibrium homogeneus or heterogeneus? C.) what is ...
Tuesday, February 28, 2012 at 10:53pm by Mandy

Chemistry
Consider the heterogeneous equilibrium process shown below. C(s) + CO2(g) 2 CO(g) At 700.°C, the total pressure of the system is found to be 3.87 atm. If the equilibrium constant KP is 1.52, calculate the equilibrium partial pressures of CO2 and CO.
Saturday, February 23, 2013 at 7:42pm by Alan

Chemistry
Consider the following equilibrium at 1000K: 2SO2 (g) + O2 (g) ¡ê 2SO3 (g) A study of this system reveals that there are 3.5E-3 moles of sulfur dioxide gas, and 4.8E-3 moles of oxygen gas present in a 11.0L flask at equilibrium. The equilibrium constant for this ...
Sunday, June 3, 2012 at 11:03am by please help!

Chemistry
In the industrial synthesis of ammonia, the equilibrium constant expression may be written as: Keq= [NH3]^2/[N2][H2]^3 Calculate the value of this equilibrium constant, if the equilibrium concentration of nitrogen in the reaction mixture at 600°C if [N2] = 4.53 and [H2] = ...
Friday, November 18, 2011 at 12:24am by Chemistry Chick

Chemistry
3.0 moles each of carbon monoxide, hydrogen, and carbon are placed in a 2.0 liter vessel and allowed to come to equilibrium according to the equation: CO(g)+H2(g)-->C(s)+H20(g) if the equilibrium constant at the temperature of the experiment is 4.0, what is the ...
Friday, March 9, 2012 at 5:11pm by Kelly Hills

chemistry
the equilibrium constant is the ration of product concentration to reactant concentration at equilibrium. a reaction will likely go to completion if the equilibrium constant is what?
Saturday, January 22, 2011 at 9:37am by brandi

Chemistry
Consider the equilibrium 2NO (g) <---> 2NO (g) + Cl2 (g). In a 1 L container @ equilibrium there are 1.0 mol NOCL, 0.70 mol NO, and 0.40 mol Cl2. @ constant temperature and volume, 0.10 mol NaCl is added. What are the concentrations in the "new" ...
Friday, April 12, 2013 at 11:22pm by Anna

Chemistry chemical equilibrium
1.25 mol of NOCl was placed in a 2.50 L reaction chamber at 427 celciciu degre . After equilibrium was reached, 1.1 mole of NOCl remained. Calculate the equilibrium constant Kc for the reaction
Saturday, February 18, 2012 at 2:50am by Abdela

Chemistry
N2 +O2 = 2NO has an equilibrium constant Keq of 0.10 mol/L @ 2000 degrees celcius. If the equilibrium concentration for NO is 0.40 mol/L and the equilibrium concentration for N2 is 0.80 mol/L, what is the equilibrium concentration of O2?
Monday, November 10, 2008 at 4:54pm by Chernika

chemistry reaction rate
You will need to add a catalyst. 'nic' is not correct as changing the P or concentrations will only change the position of the equilibrium. Increasing the temperature will bring the reaction to equilibrium more quickly, but will decrease the equilibrium yield as it is ...
Sunday, January 9, 2011 at 8:52pm by Dr Russ

chemistry
For the reaction 2A(g) + B(aq) + 3C(l)<------> D(s) + 3E(g), the concentrations at equilibrium are found to be: A: 2.3x10^3 Pa B: 1.8x10^-2 M C: 15.8M D: 12.5M E: 5.6x10^4 Torr Find the numerical value of the equilibrium constant that would appear in a ...
Sunday, March 10, 2013 at 7:20pm by Ashley

Chemistry
A mixture containing 0.5 mol of H2 (g) and 0.5 mol of I2 (g) was introduced into a 10L container at a temperature of 448 C. At this temperature the equilibrium constant Kp is 50. i. What is the total pressure in the container before the reaction starts and at equilibrium. ii. ...
Wednesday, December 26, 2012 at 7:25pm by Matt

Chemistry/Equilibrium calculations
I didnt check your math, but it looks in the ballpark. Now the last: You are not in an equilibrium here, as the exhaust is flowing thru, so the addition of a catalyst will increase the amount of CO2 (:but not to the equilibrium level). Much of the exhaust will not react ...
Saturday, August 16, 2008 at 12:00pm by bobpursley

Chemistry
1) Gases are not included in the equilibrium constant expression.They are included so this is incorrect. 2) Equilibrium constant can be increased by adding a catalyst.They can not be changed by adding a catalyst so this is incorrect 3) Large equilibrium constant favors ...
Saturday, March 17, 2012 at 7:01pm by DrBob222

chemistry... HELPP
Chemistry Equilibrium Constant PLEASE Help!? In an experiment, equal volumes of 0.00150 M FeCl3 and 0.00150 M NaSCN were mixed together and reacted according to the equation: Fe3+ (aq) + SCN– (aq) <--> Fe(SCN)2+ (aq) The equilibrium concentration of FeSCN 2...
Tuesday, October 16, 2012 at 9:38pm by LS

chemistry
Determine the concentration at equilibrium if you start with 2.3 grams of Hydrogen and 200grams of Iodine in a 2.3 liter container. If you now add an extra .25M of HI after equilibrium, calculate Qc. Recalculate now what the concentrations should be at equilibrium. H2(g)+I2(g...
Tuesday, March 8, 2011 at 7:57am by regina

Chemistry
What are some of the equilibrium expressions that chemists use for weak acid equilibrium?
Saturday, March 30, 2013 at 11:17pm by Anonymous

Chemistry
What are some equilibrium expressions that chemists use for weak acid equilibrium?
Saturday, March 30, 2013 at 10:02pm by Jordan

Chemistry
What are some equilibrium expressions that chemists use for weak acid equilibrium?
Saturday, March 30, 2013 at 10:01pm by Jordan

AP CHEMISTRY
write the equilibrium-constant expression and calculate the value of the equilibrium constant for each of the following reactions at 298 K. (a) NaHCO3(s)<--> NaOH(s) + CO2(g) Answer: Keq = PCO2 (b)Value of the Equilibrium Constant: Please help me find B
Monday, March 19, 2012 at 7:34pm by DAN

Chemistry
Please show step by step with answer The equilibrium constant, Kc, for the equilibrium N2O4 (g) <---> 2NO2(g) is 4.6 x 10^-3 If the equilibrium mixture contains 4.0×10^-2 M NO2, what is the concentration of N2O4?
Monday, May 31, 2010 at 3:46pm by Lynn

chemistry
How many moles of water will produced at equilibrium be if there is 1.0 mole of carbon dioxide formed at equilibrium?
Thursday, February 14, 2013 at 8:50am by Anonymous

Chemistry Equilibrium
The answer is dg=0 only. The other conditions may happen at equilibrium but are not always the case.
Thursday, March 14, 2013 at 2:03pm by Court

chemistry
You work with the following system: 2X(g) <--> Y(g) At, equilibrium, [Y]=3[X]. If K=10, calculate the [Y] at equilibrium.
Thursday, May 10, 2012 at 11:13pm by Katie

Chemistry
Thanks drbob, I was just getting confused by the direction of the equilibrium. how can you tell which way the equilibrium shifts?
Wednesday, April 7, 2010 at 10:29pm by Amphee

chemistry
For the following reaction at a certain temperature, it is found that the equilibrium concentrations in a 5.00 L rigid container are [H2] = 0.0500 M, [F2] = 0.0100 M, and [HF] = 0.400 M. If 0.261 mol of F2 is added to this equilibrium mixture, calculate the concentrations of ...
Friday, November 13, 2009 at 11:32pm by Meghan

chemistry
please help and explain. At a certain temperature, Keq = 10.5 for the equilibrium below. CO(g) + 2 H2(g) equilibrium reaction arrow CH3OH(g) Calculate the following concentrations. (b) [H2] in an equilibrium mixture containing 1.01 mol/L CO and 0.335 mol/L CH3OH
Monday, March 11, 2013 at 3:46pm by Julia

Chemistry
Given the reaction A(g) + B(g) <-> 2AB(g) 1. What does equilibrium mean? -equal mols or pressure between reactants and products? Is there more reactants or products? 2. Will the equilibrium be the same if i started with the reactants only vs if i started with the...
Monday, April 4, 2011 at 12:10am by BlahxD

Chemistry
I assume you want the NO2 at equilibrium although you don't say that in the post. initial: NO2 = 849.9/(46*390) = ?? moles/L NO = 0 O2 = 0 equilibrium: O2 = not needed. NO = 248.2/(30*390) = ?? moles/L NO2 = ----- Since 2 mols NO are produce for each 2 moles NO2 initially...
Thursday, April 15, 2010 at 7:31pm by DrBob222

chemistry
That's my error. The vessel is charged with 0.300 g H2O (0.04315 atm) but that isn't at equilibrium. It will shift to come to equilibrium.
Sunday, March 11, 2012 at 8:06pm by DrBob222

Chemistry
Write the equation for the equilibrium that exists when nitrous acid and sodium acetate are placed in solution together (do not include spectator ions). Using published values for the Ka of nitrous acid and of acetic acid, determine the numerical value of the equilibrium ...
Wednesday, April 4, 2012 at 9:34pm by chamy

chemistry
A catalyst changes the RATE of a reaction, because it allows an alternative pathway for the reaaction to take place. Therefore, the reaction you have written may reach equilibrium faster, due to this increased rate; however, Keq (the equilibrium constant) remains the same and ...
Thursday, December 6, 2007 at 3:31pm by DrBob222

Chemistry
Need help in AP chemistry on Equilibrium When heated, hydrogen sulfide gas decomposes according to the equation 2 H2S(g) ⇄ 2 H2(g) + S2(g) A 3.40 g sample of H2S(g) is introduced into an evacuated rigid 1.25 L container. The sealed container is heated to 483 K, and 3...
Monday, April 9, 2012 at 8:58pm by Sam

Chemistry
At 2000°C, 5.0×10-3 mol CO2 is introduced into a 1.0 L container and the following reaction comes to equilibrium: 2CO2(g) <-> 2CO(g) + O2(g) Kc = 6.4×10-7 a. Calculate the equilibrium concentrations of CO and O2. b. What fraction of the CO2 is ...
Monday, October 18, 2010 at 5:58pm by mg

chemistry
A mixture consisting of 0.150 M N2(g) and 0.612 M H2(g) reacts and then reaches equilibrium according to the equation: N2(g) + 3H2(g) ⇋ 2NH3(g) At equilibrium, the concentration of ammonia is 0.213 M. Calculate the concentration (molarity) of H2(g) at equilibrium to ...
Thursday, May 9, 2013 at 3:56am by Johnny

chemistry
In a gaseous equilibrium (I assume the H2O is liquid) increases pressure shifts the equilibrium to the side with fewer mols of gas.
Tuesday, April 3, 2012 at 5:24pm by DrBob222

Chemistry
In an esterification reaction, how does one tell when its reached equilibrium? Like what sign could you use to measure the rate at which it gets to equilibrium?
Sunday, December 4, 2011 at 10:53pm by Lauren

chemistry
a) The OH- concentration of 0.050 M ammonia, NH3, is 9.5x10^-4. Write the equilibrium equation for its ionization and the equilibrium constant expression; solve for the value of K.
Wednesday, March 30, 2011 at 9:54pm by E.G.

Chemistry
3H2(g)+N2(g)=2NH3(g) Suppose the equilibrium constant Kp = 0.003337 for the reaction above. If the equilibrium mixture contains partial pressures H2 = 0.400 atm and N2 = 0.350 atm. What is the equilibrium partial pressure of NH3 in atm?
Thursday, September 23, 2010 at 4:09pm by Tiffany

chemistry
for the reaction S2F6 (g) 2SF2(g), the equilibrium concentrations are as follows: [S26]=0.000430M, [SF2]=2.08 M, [F2]=1.32M. the equilibrium constant is
Sunday, November 13, 2011 at 6:21pm by karen

chemistry
The OH- concentration of 0.050 M ammonia, NH3, is 9.5x10^-4. Write the equilibrium equation for its ionization and the equilibrium constant expression; solve for the value of K.
Wednesday, March 30, 2011 at 9:58pm by Eghonghon

College Chemistry 2 - Equilibrium Constants/Conc.
Calculate the equilibrium constant K(eq) for the following reaction at that temperature: 2SO2 (g) + O2 (g) = 2SO3 (g)
Friday, March 4, 2011 at 7:56pm by Lynn

Chemistry
Write the equilibrium constant expression, K, for the reaction.Then substitute the equilibrium pressures of SO2 and O2 and solve for SO3 partial pressure.
Monday, September 7, 2009 at 3:49pm by DrBob222

Chemistry - Equilibrium
.1132 M @ equilibrium
Wednesday, April 25, 2012 at 3:11pm by Shaniqua

Chemistry
For the following reaction at a certain temperature: 2( ) 2( ) ( ) 2 H F HF g g g + it is found that the equilibrium concentrations in a 5.00 L rigid container are [H2]=0.0500 M, [F2]=0.0100 M, and [HF]=0.400 M. If 0.200 mol F2 is added to this equilibrium mixture, ...
Wednesday, April 3, 2013 at 9:04pm by Jerry

Chemistry
a 1.00-mol sample of phosphorus pentachloride placed in 10.0-L reaction flask and allowed to come to equilibrium at 250 degrees celsius; PCL5(g) = PCL3(g) Cl2(g) if the amount of chlorine in the equilibrium mixture is0.470 mol, calculate (a) the equilibrium concentration of ...
Wednesday, October 19, 2011 at 3:06pm by MIndy

college chemistry
For the equilibrium Br2 + Cl2 goes to 2BrCl at 400 K ,Kc = 7.0. 0.30 of Br2 and 0.30 of Cl2 are introduced into a 1.0 L- container at 400 K.a) What will be the equilibrium concentration of Br2? b) What will be the equilibrium concentration of Cl2 ? c) What will be the ...
Friday, October 7, 2011 at 4:11am by erika

Chemistry
I don't get 0.89 either. What I don't know is about the equilibrium. Is that 0.50 quoted for CO2 equilibrium concn or initial concn? I worked it both ways and I obtained 0.80 if the 0.5M CO2 is at equilibrium. If initial then I used 1.6 = (2x)^2/(0.5-x) and obtained 0.29.
Friday, March 22, 2013 at 12:42pm by DrBob222

chemistry
I am given the following reaction: 2NH3(g) -------> N2(g) + 3H2(g) My question is: 6.4 mols of ammonia gas has been put into a 1.7 L flask and has been permitted to reach equilibrium in accordance to the reaction listed above. If the equilibrium mixture has 4.2 mols of ...
Monday, May 26, 2008 at 7:17pm by Shivani

Chemistry 2
Supposed you stoppered the flasks after your titration to determine the equilibrium constant and kept the solutions for another day so that the equilibrium was re-established. What would happen to the amount of ethanol present? What would be the relationship of the original ...
Friday, August 3, 2012 at 12:42pm by Robert

Chemistry
If you decrease the pressure on the equilibrium mixture represented below, which direction would you expect the equilibrium to shift? C3H8(l) + 5O2(g) 4H2O(g) + 3CO2(g)
Tuesday, December 6, 2011 at 9:24pm by Britney

Chemistry
According to Le Chatelier's principle, does the equilibrium shift to the products or reactants when O2 is added to the equilibrium mixture of the following: A. 302(g) - 2O3(g)
Wednesday, April 20, 2011 at 9:42pm by Eric

chemistry
Taking note of the equilibrium 4HCl(g) + O2(g) ----> 2H2(g) + 2Cl2(g). What would be the the equilibrium law expression for the balanced chemical equation?
Monday, May 26, 2008 at 9:29am by Johnathan

chemistry
Taking note of the equilibrium 4HCl(g) + O2(g) ----> 2H2(g) + 2Cl2(g). What would be the the equilibrium law expression for the balanced chemical equation?
Sunday, May 25, 2008 at 9:33pm by Johnathan

chemistry
Ammonia reacts with oxygen in the presence of a platinum catalyst to give nitric oxide and water, according to the following gas phase equilibrium: 4NH_3(g) + 5O_2(g) <---> 4NO(g) + 6H_2O(g) ÄH = −906 kJ mol^−1 What is an appropriate ...
Saturday, January 3, 2009 at 7:32pm by trigger

chm152
Consider the following equilibrium: 5.0 moles of are placed in a 10.0 L flask at 200 C and allowed to come to equilibrium. Analysis shows that 1.0 mole of is present in the equilibrium mixture. How many moles of Cl2 are present at equilibrium. Choose one answer. a. 0 b. 1.0 c...
Saturday, March 27, 2010 at 11:38am by ami

Chemistry
1. In an equilibrium, A + B ---> C + D; "A" & "B" are mixed in a vessel at temperature "T". The initial concentration of "A" was twice the initial concentration of "B", & after the equilibrium has reached, ...
Thursday, October 13, 2011 at 1:42am by Atul

Chemistry
Consider the reaction 3X + Y ⇔ 2W + Z. At equilibrium, [X] is 7.0 M, [Y] is 6.0 M, [W] is 5.0 M and [Z] is 7.0 M at 298 K. The value of the equilibrium constant at this temperature is: a) 0.085 b) 0.560 c) 1.800 d) 11.760
Tuesday, May 15, 2012 at 12:48pm by Andrea

chemistry
A classic experiment in equilibrium studies dating from 1862 involved the reaction in solution of ethanol and acetic acid to produce ethyl acetate and water. The reaction can be followed by analyzing the equilibrium mixture for its acetic acid content. In one experiment, a ...
Sunday, March 13, 2011 at 5:44am by gs

chemistry
The system H2 (g) + 3N2 (g) = NH3 (s) is at equilibrium.Use Le Chatelier's principle to predict the direction in which the equilibrium will shift if the ammonia is withdrawn from the reaction chamber.
Wednesday, March 6, 2013 at 12:31pm by Shane

Chemistry
A mixture containing CH3OH, HF, CH3F, and H2O, all at an initial partial pressure of 1.04 atm, is allowed to achieve equilibrium according to the equation below. At equilibrium, the partial pressure of H2O is observed to have increased by 0.43 atm. Determine Kp for this ...
Wednesday, March 9, 2011 at 1:26pm by Colin

Science
A chemist is studying the following equilibrium: 2Pb(NO3)2 (s) ! 2PbO (s) + 4NO2 (g) + O2 (g) He starts out with 10 g of Pb(NO3)2 and, at equilibrium, has 2.02 g of PbO. The concentrations of NO2 and O2 at equilibrium are 0.25 M and 0.019 M, respectively. What is the value of ...
Thursday, June 30, 2011 at 11:15pm by Megan

chemistry
I hope this will help us figure out now For questions #1 through #10, refer to the following equilibrium system, with a Kc of 1.23E-03: C3H6O (aq) + 2C2H6O(aq)----> C7H16O2 (aq) + 2H2O (l) 1. What is the equilibrium expression for this system? [C7H16O2]/ [C3H6O][C2H6O]2...
Monday, April 23, 2012 at 8:22am by cateye

Chemistry(Please check answer)
The equilibrium constant for the reaction, H2(g) + I2(g) == 2 HI(g) is 54.9 at 699.0 K (Kelvin). What is the equilibrium constant for 4 HI(g) == 2 H2(g) + 2 I2(g) under the same conditions? Note: the == indicates the equilibrium double arrow Since the second equation is ...
Wednesday, March 14, 2012 at 8:30pm by Hannah

organic chemistry
calculate the amount of isopentyl acetate that should be present in the reaction mixture at equilibrium, based on the quantities of starting materials you used and a value of 4.2 for the equilibrium costant
Wednesday, September 28, 2011 at 4:51pm by vicky

chemistry
A mixture containing 0.0392 M A(g) and 0.0452 M B9g) is allowed to come to equilibrium at 300K. The reaction: 3A(g)+ 2B(g)=> C(g)+ D(g) occurs. At equilibrium, [C]=0.00128 M What is the value of Kc?
Saturday, July 3, 2010 at 3:03pm by Jim

Chemistry
The A part is the latter; i.e., Ag^+ will combine with Cl^- to form AgCl which will shift the equilibrium to the left. Is the equilibrium you cite in acetone to begin with, in water, or in some other solvent?
Thursday, March 18, 2010 at 8:04pm by DrBob222

chemistry
Is that HS(g) or HS^-(g)? Is that S(s)? A. A huge K means the equilibrium is far to the right. B. If that is S(s) there are two moles on the right and 3 on the left so increased P would shift the equilibrium to the right. c. Increased T shifts the equilibrium to the left.
Saturday, January 14, 2012 at 5:08pm by DrBob222

Chemistry
Nitrogen dioxide, NO2, dimerizes easily to form dinitrogen tetroxide , N2O4 : 2NO2<===>N2O4 a) Calculate Change in reaction G* and K for this equilibrium. b) Calculate the (e) (the measure of the progress of the reaction) for this equilibrium if 1.00 mol NO2 were...
Thursday, October 20, 2011 at 8:53pm by Jenna

Chemistry Equilibrium Constant
Or do I solve for x, using the given pressure of I2 at equilibrium, so should it be 1E-5 = 0.1 - x? (solve for x)
Sunday, March 18, 2012 at 11:15pm by Raskin

Chemistry
If the equilibrium constant is the same as Kb, yes. But I'm not sure that it is. I've never seen an ION shown as an equilibrium constant.
Tuesday, May 4, 2010 at 7:55pm by DrBob222

Chemistry
If that is the problem I would answer dG = 0 since you have an equilibrium at the normal boiling point and dG = 0 at equilibrium.
Tuesday, April 30, 2013 at 3:52pm by DrBob222

chemistry
If the equilibrium constant for the conversion of isobutane to n-butane is 2.5 what is the value of the equilibrium constant for the reverese reaction?
Tuesday, April 1, 2008 at 3:29am by Jennifer

Chemistry
1. Consider the following reaction occurring in a closed chemical system. Assume that this reaction is at equilibrium and that in general the reaction to the right is favored. CH3CH2OH + 3O2 2CO2 + 3H2O ∆H = –1,235 kJ/mol • What type of chemical reaction is...
Tuesday, April 24, 2012 at 9:52am by Anonymous

chemistry
What do you not understand about Le Chatelier's Principle? It says that a reaction in equilibrium will shift to undo what we do to it. Hint for this question: Remember solids and pure liquids are not included in equilibrium constants.
Saturday, July 21, 2012 at 11:21pm by DrBob222

chemistry
The reaction is N204 <---> 2NO2. First equilibrium is set up and the [] Of both is 2M. Now the pressure decreases the falsh volume to 3L. What will be the new equilibrium [] If K stays at 2?
Thursday, October 9, 2008 at 1:00am by A

Chemistry
For the reaction below at a certain temperature, it is found that the equilibrium concentrations in a 5.00 L rigid container are [H2] = 0.0500 M, [F2] = 0.0100 M, and [HF] = 0.400 M. If 0.340 mol of F2 is added to this equilibrium mixture, calculate the concentrations of all ...
Monday, February 20, 2012 at 9:11pm by Elizabeth

Chemistry
For the reaction: H2(g) + I2(g) 2HI(g) , Kc = 12.3 at some temperature T. If [H2] = [I2] = [HI] = 3.21 x 10-3 M at this temperature, which one of the following statements is true? 1. ) Not enough information is given to answer the question. 2. ) The concentration of HI will ...
Sunday, October 25, 2009 at 5:23pm by Jerry

chemistry
You haven't stated the problem very clearly. I assume you mean the equilibrium "concentrations" and not equilibrium constants. You have the Kc given in the problem. Also, I assume that 0.75M is (ICl) initially and not at equilibrium. ..........2ICl ==>I2...
Saturday, January 26, 2013 at 1:00am by DrBob222

Chemistry
CaCO3(s) <--> CaO(s) + CO2 (g) A 5.9-gram sample of CaCO3 (molar mass = 100.) is placed in an evacuated 2.00L container and heated to 200^oC. Equilibrium is reached when 5.15% of the CaCO3 has decomposed. 1)Write the Kp expression for this reaction and calculate ...
Thursday, March 3, 2011 at 10:36pm by Patrick

chemistry
A reaction mixture is in a 5.4 L flask at 25 oC initially contains only 7.64 grams of acetic acid. (CH3COOH). Set up your I.C.E. table and use it to answer the following questions. HINT: You will need to look up the Ka for this equilibrium reaction. CH3COOH(aq) ¡ê ...
Tuesday, March 1, 2011 at 7:38pm by juan

AP Chemistry
For the system 2SO2(g) + O2(g) <--> 2SO3 (g), change in enthalpy is negative for the production of SO3. At a particular temperature, 8.00 moles of sulfur dioxide and 10.00 moles of sulfur trioxide are introduced into a 2.00 L container. The system is allowed to ...
Saturday, January 12, 2008 at 10:45pm by S

Chemistry
C(s) + H20(g)↔ CO(s) + H2(s) the equilibrium constant for this reaction is 4.251 x 10^-2 at 800 K. if the equilibrium concentration of H2O(g)is 0.1990 M, what are the concentrations of CO, H2, and C?
Thursday, March 29, 2012 at 12:26am by Someone

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