
The following reaction has an equilibrium constant (Keq) of 160. 2 NO2(g) <> 2 NO(g) + O2(g) What will be the reaction quotient (Q) and in which direction will the reaction proceed if the partial pressure of NO2 is 5.0*10^4 atm, NO is 0.080 atm,

At 2010K, the equilibrium constant Kc is 4*10^4 for the following: N2+O2>2NO If the equilibrium concentration of N2 is .28M and O2 is .38M, what is the equilibrium concentration of NO? a)1.8*10^9 b)2.1*10^5 c)4.3*10^5 d)6.5*10^3

points that lie o the same line are called collinear points. The points H,S,D,K,L, and D are collinear. use the following information to locate them on the line and label the points accordingly. KS + SB =KB DH + HS =DS DH + Hk =DK points L and B are not

A(n) ____ will be sent to all our representatives in Latin AMerica advising them how to handle the problem libel None of us could figure out how the ____ magician had managed to escape from the trunk submerged in the tank of water ingenious?

What is the significance of a very large Kp value on the equilibrium concentration of H2 in the reaction: 2H2(g) + O2(g) >2H2O(g)? < There is very little H2 at equilibrium. The amount of H2 is always equal to the amount of O2 at equilibrium. The


Consider the following reaction. CaSO4(s) Ca2+(aq) + SO42(aq) At 25°C the equilibrium constant is Kc = 2.4 105 for this reaction. (a) If excess CaSO4(s) is mixed with water at 25°C to produce a saturated solution of CaSO4, what are the equilibrium

Magnesium reacts with HCl(aq) to form MgCl2 and H2(g) ____ Mg(s) + ____ HCl(aq) > ____ MgCl2(aq) + ____ H2(g) The following data was collected for the above reaction: Mg (g) 5% (m/v) HCl (ml) H2 gas produced (ml) 0.50 10 167 0.50 20 333 0.50 30 500

If the equilibrium concentrations are [PCl5] = 1.0M, [Cl2] = 0.10M, what is the equilibrium constant value? PCl5(g) <> PCl3(g) + Cl2(g) Would you mind showing the calculations Please. I've been working on this problem over an hour now. Not certain

At a certain temperature, Kc = 33 for the reaction: H2(g) + I2(g) 2HI(g) Assume that the initial concentrations of both H2 and I2 are 6.00 x 103 mol/L. Find the concentration of each reactant and product at equilibrium.

Select the letter that indicates the correct noun or pronoun in the following sentence. If both choices are correct, select the pronoun. 1. The last time Kevin and Denise were here was right after ____ had broken her ankle. a.she b.Denise 2. In the

Methane and Hydrogen Sulfide react at 960 degree Celsius and come to the following equilibrium CH4(g)+2H2S(g) <> CS2(g)+ 4H2(g) At Equilibrium the concentration measured as [Ch4]= 5.56M [H2s]= 11.12 [CS2]= 2.44M [H2] 1.76, A) Write the equilibrium

A 5.00L reaction vessel is filled with 1.00mol of H2, 1.00mol of I2, and 2.50mol of HI. If equilibrium constant for the reaction is 129 at 500k, what are the equilibrium concentrations of all species? H2(g) + I2(g) <> 2HI(g) Kc = 129

This is super confusing, I'm sorry! The homework: You have to administer simultaneously two drugs which are each 90% protein bound when administered separately. Please use the law of mass action to calculate how do you have to change the administered doses

Hydrogen iodide decomposes according to the reaction 2HI(g)H2(g) + I2(g) A sealed 1.50 L container initially holds .00623 moles of H2, .00414 moles of I2, and .0244 moles of HI at 703K. When equilibrium constant is reached, the concentration of H2(g) is

2 NOCl(g) > 2 NO(g) + Cl2(g) Let’s assume that at a given temperature the equilibrium constant is 2.25: Also, the equilibrium concentration of the NOCl is 0.04M. Determine the concentration of the NO and the Cl2 CLUE: the concentration of both of


19.Remember that the Pledge of ____ is not a formula to be repeated mechanically but a summary of our sacred duty to our country allegiance 11.Under the US Constitution officials are never ____ to a point where they are more important or more powerful than

Complete each ratio table: ___ 12 18 24 4.5 ___ ___ 18 80.8 40.4 ____ 10.1 ___ 512 256 ____ How do you complete a ratio table I have never done this before. Please help me. The spaces that I put are for the answers for each table.

For the reaction: A+B <> 2C (all gases) 2.0 mol A, 2.8 mol B and 1.0 mol C are placed in a 2.0 L container and allowed to reach equilibrium. When equilibrium is established [C]=0.75 M. Calculate all equilibrium concentrations. Calculate K. I am

Please check my answers (at the bottom) with these questions. 1. An apple quickly changes color when exposed to air. This demonstrates a ________. (1 point) physical property chemical property physical change all of the above 2. When a chunk of dry ice is

Word Bank : apparel besiege compress denounce dispatch douse expressly famished forsake gainful immense inept ingenious instantaneous irk libel misgiving oaf recede repast Some people hailed the man as a genius others ____ him as a quack Denounce? Your

Estimate the equilibrium constant for the weak base (CH3)2NH, if a 1.59×102 M aqueous solution of (CH3)2NH has a pOH 2.58 (make an exact calculation assuming that initial concentration is not equal to the equilibrium concentration). (CH3)2NH + H2O =

I really need help! I have a paper due tomorrow and I can't find out this answer. Can you help me? The question says this: 2=n+5. Under it it says: (2)____=n+5____. I know that n equals 7 but I can't find out the blanks. Please help!

Find the missing numbers and landmarks for the set of numbers: 18,20,20,24,27,27,__,30,33,34,36,36,__ A range:22 B mode:27 C Minimum ____ D Maximum ____

Divide 2 ____ 9 ____ 2

passive transport involves movement of substances...... A) from areas of lower concentration areas of higher concentrations. B)from areas of higher concentrations to areas of lower concentration C) from areas which the concentration has reached a balance


A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN. The equilibrium concentration of FeSCN2+ ([FeSCN2+]std) for this standard solution is assumed to be ____ M.

There are two fillintheblank questions that I can't find the missing word. If you could be of any help, I'd appreciate it. :) #1. The ____ describes the steps you use during an experiment. #2. Sometimes scientists make a mistake, or ____, and need to do

The temperature of a substance ____ as its heat of fusion is added to melt the substance A. increases B. decreases C. remains constant D. fluctuates from rapid increases and decreases

the temperature of a substance ____ as its heat of fusion is added to melt the substance A. increases B. decreases C. remains constant D. fluctuates from rapid increases and decreases I think it's C

An equilibrium was established after 0.100 mol of hydrogen gas and 0.100mol of iodine gas were added to an empty 1.00L reaction vessel and heated to 700K. The color intensity of the mixture changed from deep purple to a lighter purple color. At

36+81=____(____+____)

A chemical is placed in a beaker containing 20 g of soil and 500 mL of water. At equilibrium, the chemical is found in the soil at a concentration of 100 mg/kg of soil. The equilibrium concentration of this same chemical in the water is 250 µg/L.

1 Freezing of water is ____ change. 2 A solid which dissolve in water is called ____

Where did you get 5E5. Is this how you set it up? 0.01 x 0.05 = 5E4 If so, is it supposed to be 5E4 instead of 5E5? What is the equilibrium constant for a weak acid HA that dissociates 1% at an initial concentration of 0.05 M according to the following

1. The ability of an apple to change color when exposed to air is a ____. (1 point)physical property chemical property physical change chemical change 2. Which of the following is NOT a possible sign of a physical change? (1 point)a change in appearance a


For the equilibrium: H2 + I2 <=> 2HI The equilibrium konstant Kc is equal to 50.5 at 448ºC. If [H2]o=[I2] o= 1 mol/l. What will the concentration of H2, I2 and HI be at equilibrium

f(x)=(6x^3–9x^2–3x–1)/(4x^2+7x–3) . Find the equation of the nonvertical asymptote. y = ____3x/2  39/8_____ Does f(x) intersect its nonvertical asymptote? (yes or no) ___YES____ What is the smallest value of x at which f(x) intersects its

I answered le le me te * most confused with # 2 b/c it then the sentence read le la 1. El camarero va a traer ____ la cuenta a mi papa 2. A mi hermana Elena _____ encanta el flan 3. a mi ____ gustan las papitas 4. A ti ___ gusta el jamon

Estimate the equilibrium constant for the weak acid HCN, if a 4.68×103 M aqueous solution of HCN has a [H+] 0.00000151 M (make an exact calculation assuming that initial concentration is not equal to the equilibrium concentration). HCN = CN + H+

Estimate the equilibrium constant for the weak acid HCO2H, if a 2.19×103 M aqueous solution of HCO2H has a pH 3.21 (make an approximate calculation assuming that initial concentration is equal to the equilibrium concentration). HCO2H = HCO2 + H+

for the equilibrium 2HI(g) H2(g) + I2 k eq = 8.0 2.0 mol of HI are placed in a 4.0 L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases. Inital 2HI 0.5mol/l H2 =0 I2=0 change 2HI= 2x

I have to find the rule of each line can you help? 1.3,3.3,4.5,6.5,7.7,____,_____,_____ Rule:_______________________ 14.8,15,13.2,13.4,11.6,____,____,____ Rule:_______________________ 4.8,9.6,8.9,17.8,17.1,_____,______,_____ Rule:_______________________

I really need this please!!!!!!! : write the equilibriumconstant 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

I really need this please!!!!!!! : write the equilibriumconstant 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

Sulfur trioxide decomposes into sulfur dioxide and oxygen in an equilibrium. You have a 3.00 L vessel that is charged with 0.755 mol of SO3. At equilibrium, the amount of SO3 is 0.250 mol. 2 SO3 (g) > 2 SO2 (g) +O2 (g) A) calculate the equilibrium


I got 1.11 x 10^6 for K. Here is my work: x= 0.004 2x= 0.008 (change for CH4) Equilibrium for CH4 is 0.087  0.008= 0.079 Change in eq for C2H2 is 0.004 and eq is 0.004 (=x) Change in eq for H2 is 0.012 Eq for H2 is 0.012 K= [C2H2][H2]^3/[CH4]^2 K=

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)

A system initially contains 0.100 mol each of the three species sealed in a 10.0 L container. The temp was raised to a temp where the equilibrium constant Kc, is 12.6 for PCl3(g) + Cl2(g)> < PCl5(g) Calculate the equilibrium concentration of all

A system initially contains 0.100 mol each of the three species sealed in a 10.0 L container. The temp was raised to a temp where the equilibrium constant Kc, is 12.6 for PCl3(g) + Cl2(g)> < PCl5(g) Calculate the equilibrium concentration of all

Word box affluence arrears cascade cringe crotchety format immobile impassable innovation jovial manacle martial minimum nimble onset partition perishable retrieve sinister taut Sherlock Holmes detected in the wicked scheme the ____ hand of the evil

The equilibrium constant, Kc, for the following reaction is 1.54E2 at 643 K. 2HI(g) H2(g) + I2(g) When a sufficiently large sample of HI(g) is introduced into an evacuated vessel at 643 K, the equilibrium concentration of I2(g) is found to be 0.351 M.

When the concentration of I2 is increased to 1.5 M, the ratio of products to reactants is 28. The equilibrium constant for the reaction is 83. In which direction will the reaction shift to regain equilibrium?

At 500 ºC, the decomposition of water into hydrogen and oxygen, 2H2O(g) 2H2(g) + O2(g) has Kc = 6.0 × 1028. What are the concentrations of H2 and O2 that are present at equilibrium in a 2.00 L reaction vessel at this temperature if the container

Kc for the decomposition of ammonium hydrogen sulfide is 1.8 x 104 at 15oC. a. When 5.00 grams of the pure salt decomposes in a sealed 3.0 L flask at 15oC, what are the equilibrium concentrations of NH3 and H2S? b. What are the equilibrium concentrations

equilibrium CO(g)+2H2(g)<>CH3OH(g)calculate these concentrations:CO(g) in an equilibrium mixture containing 0.933mol/L H2 and 1.32 mol?l CH3OH.


Complete each sentence by adding ed to one of the following words and writing the new word on the line. Word Bank: whisper; murmur. 1. It seemed that the army ____ to itself in the dark. 2. Some of the men ____ to themselves.

The equilibrium constant for the reaction H2 + I2 > 2HI, is 54 at 425 degrees C. If the equilibrium mixture contains 0.030 M HI and 0.015 M I2, calculate the equilibrium concentration of H2.

At 25 oC, Kc = 0.145 for the following reaction in the solvent CCl4. 2BrCl <> Br2 + Cl2 A solution was prepared with the following initial concentrations: [BrCl] = 0.0482 M, [Br2]= 0.0307 M, and [Cl2]= 0.0277 M. What will their equilibrium

At 25 oC, Kc = 0.145 for the following reaction in the solvent CCl4. 2BrCl <> Br2 + Cl2 A solution was prepared with the following initial concentrations: [BrCl] = 0.0482 M, [Br2]= 0.0307 M, and [Cl2]= 0.0277 M. What will their equilibrium

5 2x1 = x+2 ____. ____ 4. 3 I keep getting x=5.5 Multiply by 12 603(2x1)=4(x+2) 606x3 =4x+8 636x=4x+8 Add the 6x 63=10x+8 Subtract the 8 55=10x Divide 10 X=5.5

The equilibrium constant of a reaction is determined at 2 different temperatures: at 181°C, Keq = 2770 at 11°C, Keq = 640

Acetic acid (CH_3COOH) is a weak acid. a) Write the symbolic equation showing the ionisation of acetic acid. b)Given that an acetic acid solution of pH 4.8 has a hydrogen ion concentration of 1.58 * 10^5 mol L^1, what is the concentration of the acetate

For the reaction: N2+3H2 <> 2NH3 1.000 mol N2 and 1.000 mol H2 are placed in a 1.000 L container and allowed to establish equilibrium. When equilibrium is established the [N2] =0.921M. Calculate the equilibrium concentrations of hydrogen and

Can someone check my answers for the following questions...btw HAPPY HOLIDAYS TO EVERY AT JISKHA! 1)As the magnitude of Keq increases, the amount of product formed in a reversible reaction: REMAINS CONSTANT 2)The Keq of reacion 4 x 107. At equilibrium:

An aqueous solution of 0.25 M silver nitrate, AgNO3, and 0.25 M iron(II) nitrate, Fe(NO3)2, are allowed to come to equilibrium in the following chemical reaction:
Ag+(aq) + Fe2+(aq) Fe3 + (aq) + Ag(s)
If the equilibrium constant, Kc, for the


A mixture of .10 mol of NO, .050 mol of H2 and .10 mol of H20 is placed in a 1 liter vessel at 300 K. The following equilibrium is established. 2 NO + 2 H2 <> N2 + 2 H20 At equilibrium (N0) = .062 M. What are the equilibrium concentrations of H2

A mixture of .10 mol of NO, .050 mol of H2 and .10 mol of H20 is placed in a 1 liter vessel at 300 K. The following equilibrium is established. 2 NO + 2 H2 <> N2 + 2 H20 At equilibrium (N0) = .062 M. What are the equilibrium concentrations of H2

The equilibrium constant, Kc, for the following reaction is 1.54E2 at 643 K. 2HI(g) H2(g) + I2(g) When a sufficiently large sample of HI(g) is introduced into an evacuated vessel at 643 K, the equilibrium concentration of I2(g) is found to be 0.351 M.

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

A 1.00 L flask containing the equilibrium mixture CO +Cl2 <> COCl2 was found to contain 0.400 mol of COCl2, 0.100 mol of CO, and 0.500 mol of Cl2. If 0.300 mol of CO is added at constant temperature, what will be the new concentrations of each

H2(g) + I2(g) ⇌ 2HI(g) The concentration of H2, I2 and HI are measured as 0.04 M, 0.08 M and 0.12 M at equilibrium and 200 K. What is the value of equilibrium constant?

Every year thousands of students take the SAT'S. RECENT TRENDS SHOW THAT THE SCORES ON THE VERBAL SECTION FOLLOW AN APPROX. NORMAL DISTRIBUTION WITH MEAN 550 AND STANDARD DEVIATION OF 110 68.26% OF THE STUDENTS WHO TAKE THE SAT VERBAL SCORE BETWEEN ______

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.

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.

Hi thanks for the help? Which are the correct indirect pronouns for the following: me te le nos les 1. El camarero va a traer ____ la cuenta a mi papa 2. A mi hermana Elena _____ encanta el flan 3. a mi ____ gustan las papitas 4. A ti ___ gusta el jamon


2 SO2(g) + O2(g) <==> 2SO3(g) Initially, 1.6mol SO3 is placed in a 3.0L container. At equilibrium, [O2] = 0.15M. What is the value of Keq? A. 0.26 B. 1.2 C. 4.0 D. 43 My work: ...2SO2...+...O2...<==>...2SO3 I 0.53M.............. C

EQUILIBRIUM: To prepare the standard solution, a very large concentration of ferric ion is added to a small initial concentration of thiocyanate ion. True or False It would help if we knew what you were doing. We are determining Chemical Equilibrium:

Into a 1.00 liter flask are placed 0.820 moles of NO and 0.223 moles of N2 and O2. What are the concentrations of NO, N2, and O2 at equilibrium? For the molarity for each, I got this: NO= .027 M N2= .0079 M O2= .0069 M balanced equation: 2NO(g) <>

Find the place value of 7 and 8 in the number 9.7548. (b). Write 23459/1000 in decimal form. (c). Write 3.537 in English words. (d). Write twelve and seventeen thousandths in decimal form. (e). Complete the statements below, using the symbol “<” or

Complétez avec l’article défini ou indéfini qui convient. 1. Vous aimez __ou__ cinéma ? 2. Vous avez l’appartement ? 3. Vous connaissez __les__ enfants de Michel ? 4. Je voudrais __le__ morceau de pain. 5. Vous lisez ____ journaux ? 6. Il a ____

Word bank authorize culprit dawdle dissect expend fatality gullible illicit immerse inflammatory memorandum pathetic persevere prevaricate quash relish reminisce scour tribute writhe We tried to hold Tom steady but he ____ with pain as the doctor put

The value of the equilibrium constant (Kp) as represented by the first chemical equation is 4.57 x 102 at 395 °C. Calculate the value of the equilibrium constant (Kp) for the second equation at the same temperature. Express answer in scientific notation.

Word bank: adverse arid assailant billow confront constrain contemporary depict disinterested encompass groundless hypocrite incomprehensible manipulate maximum mimic ruffle serene sheepish stamina Since Tom is both smart and disinterested I think he is

Lead metal is added to 0.150 M Cr3+(aq). Pb(s)+2Cr3+(aq)⇌Pb2+(aq)+2Cr2+(aq). KC=3.2×10−10 What is [Pb2+] when equilibrium is established in the reaction? What is [Cr2+] when equilibrium is established in the reaction? What is [Cr3+] when equilibrium

for the equilibrium 2HI(g) H2(g) + I2 k eq = 8.0 2.0 mol of HI are placed in a 4.0 L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases. Inital 2HI 0.5mol/l H2 =0 I2=0 change 2HI= 2x


Since no one answered, and I really need help: So I am doing this science experiment about light. I chose to do one where you put a pencil in a glass of water and the light makes it look like it's bending. There is a chart of measurements that you need to

Since no one answered, and I really need help: So I am doing this science experiment about light. I chose to do one where you put a pencil in a glass of water and the light makes it look like it's bending. There is a chart of measurements that you need to

Data (x,y) for the total number (in thousands) of collegebound students who took a test in the year x are approximately (11,1177), (8,1493), and (11,1664), where x=1 represents 2001 and x=8 represents 2008. Find the values a, b,

Phosphorus pentachloride decomposes according to the chemical equation PCl5(g) ⇌ PCl3(g) + Cl2(g) A 0.304 mol sample of PCl5(g) is injected into an empty 4.75 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and PCl3(g) at

solve by the elimination method What is the solution of the system? 5x+5y=7 7x2y=19 solution is?____ there are infinitely many solutions ____ there is no solution?_____

It took Eric 8 hours to drive to a job interview. On the way home, he was able to increase his average speed by 18mph and make the return drive in only 5 hours. Find his average speed on the return drive. Rate x time =distance Original drive x. ____ _____

Aluminum hydroxide reacts with an excess of hydroxide ions to form the complex ion Al(OH)4 a)Write an equation for this reaction b) Calculate K. c) Determine the solubility of Al(OH)3 in (mol/L) at pH 12.0 My equation was Al(OH)3 + OH > Al(OH)4 but

So I am doing this science experiment about light. I chose to do one where you put a pencil in a glass of water and the light makes it look like it's bending. There is a chart of measurements that you need to fill out and I have no idea how to get them. I

I have a question about buffers. Part A So it starts with 20ml 0.1 sodium acetate and 25ml 0.1 acetic acid. Calculate ph of buffer is 4.74 because the acid and conjugate base have the same molarity correct? So the Ph is just pKa (1.8e5)? Part B So the

108 ,36,12,4 ___ ,____find next two numbers 12,24 ,48,96 ____, ___ find the next two numbers 1 ,1,2,3 ____, ____ find the next two numbers


The molar concentrations for the reactants and products at equilibrium are found to be [HCl] = 0.80 M, [O2] = 0.20 M, [Cl2] = 3.0 M, and H2O = 3.0 M. What is the value of the equilibrium constant for this reaction? the complete reaction is

1.If its molar solubility is designated by “x”, then which of the following expressions best represents the solubility product for the substance Ag2SO4? a) x2 b) 27x4 c) 4x3 d) 108x5 e) 3x4 2. Consider the equilibrium, 4HCl(g) + O2(g) 2H2O(g) +

An experiment was carried out to determine the value of the equilibrium constant Kc for the reaction. Total moles of Ag+ present = 3.6 x 103 moles Total moles of NH3 present = 6.9 x 103 moles Measured concentration of Ag(NH3)2+ at equilibrium= 3.4* 102

C6H12O6 (aq) = 602 (g)  6CO2 (g) = 6H20 (l) H 2837 A)Exo or endothermic? B)write an expression for the equilibrium constant C)Give the value of the equilibrium constant is very large, would this reaction be fast or slow? D)effects of equilibrium if.. i.

Identify the end behavior f(x)=(x4)^2 As x > positive infinity, f(x) > ____ infinity and as x >, f(x) > ____ infinity Fill in blank