
Consider the following reaction: Find the equilibrium partial pressures of A and B for each of the following different values of Kp. Assume that the initial partial pressure of B in each case is 1.0 atm, and that the initial partial pressure of A is 0.0 atm. Make any ...

Two identical small spheres of mass 2.0g are fastened to the ends of an insulating thread of length 0.60m The spheres are suspended by a hook in the ceiling from the centre of the thread. The spheres are given identical electric charges and hang in static equilibrium, with an ...

1.Diminishing marginal utility refers to the fact that a. demand declines as income falls. b. additional satisfaction declines as additional units of an item are consumed. c. people have unlimited needs. d. in equilibrium, supply equals demand. 2. Generally, the more ...

Suppose there is a temporary but significant increase in oil prices in an economy with an upwardsloping ShortRun Aggregate Supply (SRAS) curve. If policymakers wish to prevent the equilibrium price level from changing in response to the oil price increase, should they ...

At a particular temperature, 13.4 mol of SO3 is placed into a 3.8L rigid container, and the SO3 dissociates by the reaction given below. 2 SO3(g) <> 2 SO2(g) + O2(g) At equilibrium, 3.6 mol of SO2 is present. Calculate K for this reaction.


A 24.0 g metal cube at 85.5 °C is placed into a calorimeter containing 125 mL of water at 20.0 °C. The final equilibrium temperature of the metal cube and the water in the calorimeter is 24.8 °C. Determine the specific heat of the metal

At a particular temperature, 13.7 mol of SO3 is placed into a 3.9L rigid container, and the SO3 dissociates by the reaction given below. 2 SO3(g) 2 SO2(g) + O2(g) At equilibrium, 3.8 mol of SO2 is present. Calculate K for this reaction.

A mass is attached to a spring. When is the KE at its maximum? a) at equlibrium b) at the highest point c) at the lowest point d) after the spring has performed many oscillations and returned to equilibrium I'm not sure, since none of the choices imply that the spring is ...

Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation for this is S2 (g) + C (s) <> CS2 (g) Kc = 9.40 at 900 K How many grams of CS2 (g) can be prepared by heating 11.7 moles of S2 (g) with excess carbon in a 5.95 L reaction vessel at 900 ...

you add 0.05ml of 0.10M agno3 to 4ml of 2.0 nacl it forms saturated solution of agcl<> ag+ + cl using a saturated solution you set up ag  ag+( test solution after reaction)  ag+(1.0ml)  ag how do we calc the equilibrium of ag+ of the test solution after reaction...

If 0.045 kg of ice at 0 C is added to 0.390 kg of water at 34 C in a 0.150 kg aluminum calorimeter cup, what is the final temperature of the water? If the final equilibrium temperature is 21 C and no heat is lost to the cup itself or the environment, what is the mass of the ...

If the initial pressure of NH3(g) is 0.7317 atm, calculate the % of NH3(g) left over after the reaction reaches equilibrium according to the balanced equation. The value of Kp at 500.0 °C is 67100.00. The initial pressure of the reaction products is 0 atm. 2NH3(g) = N2(g)+3H2(g)

the more elastic the demand for the good labor produces, the less elastic the demand for labor. True or False When a monopolistically competitive firm is in longrun equilibrium, average total cost is at its minimum. True or False

Consider a beam as shown in the figure that is 2 m long and supported by a rope. It is pressed against the wall. There is no friction between the wall and the beam. If the beam has a mass of 2 kg and a sign with a mass of 10 kg is hung off of the end of the beam, can the ...

For the reaction below, Kp= 28.63 at 800 K. Calculate the equilibrium partial pressures of the reactants and products if the initial pressures are PpCl5=0.5600 atm and PpCl3= 0.4700 atm PCl5(g) <> PCl3(g) + Cl2(g) PCl5=?? PCl3=?? Cl2=??


If tbone steak cost 12.00 a lb and 1st util is 48, 2nd is 42, and 3rd util is 36 and we also buy ground round at 4.00 a lb and we derive 24 utils for the 1st lb, 16 for the second and 12 for the third and all we have to spend is 40.00 then how many lbs. of tbone and ground ...

the more elastic the demand for the good labor produces, the less elastic the demand for labor. True or False When a monopolistically competitive firm is in longrun equilibrium, average total cost is at its minimum. True or False

Consider the reaction: PCl3(g) + Cl2(g) PCl5(g). If [PCl3] = 0.78 M, [Cl2] = 0.44 M, and [PCl5] = 0.88 at equilibrium, what is the value of K? A.0.39 B.1.4 C.2.6 D.0.72 Thanks!

1. The complex number 'a' is such that a^2=512i use an algebraic method to find the two possible values of 'a' 8. The complex number z is given by z=cosTheta + isinTheta where 1/2pi< or equal to Theta less than or equal to 1/2pi. a. show that 1+z=2cos(1/2Theta) and arg(...

the spinner shown to the right has 8 equal sized sections labeled 1 through 8 place the probability of each outcome described below on the number line identify each outcome as likely unlikely or neither likely nor unlikely 1. arrow lands on 8 2. arrow lands on number greater ...

Calculate the power that will pull a mass of 210kg at a constant velocity of 3.9m/s down an inclined plane which makes an angle of 17 degrees with the horizontal.The frictional force is 302N

Trenton struggled as he lifted a 27kg mass vertically a distance of 9 meters in 4minutes with a constant velocity. Ahow much work did he do? BWhat was the average power comsumption in watts?

Pt  Fe2+ (6.40105 M), Fe3+ (0.0460 M)  Sn4+ (2.70104 M),Sn2+ (0.0750 M)  Pt i need to calculate the voltage of the cell. I know to use E=emf (RT/nF)lnQ .... I think my problem is with setting up Q. I'm confused on what goes on top and what goes on bottom for the ratio ...

Provide the balanced reaction, the value of K, and E(cell) at equilibrium for the for the electrochemical cell created from the two halfcell reactions below Cr^(3+) + e ==> Cr^(2+) Fe^(2+) + 2e ==> Fe Well, I got the balanced reaction: 2Cr^(2+) + Fe^(2+) ==> Fe + 2Cr...

A 29 g ice cube at 0.0°C is added to 110 g of water in a 62 g iron cup. The cup and the water have an initial temperature of 25°C. (a) Find the equilibrium temperature of the cup and its contents. i don't understand how the iron cup changes the situation. please help.


The initial pressure of BrCl(g) in a reaction vessel is 1.6 mbar. If the vessel is heated to 500 K, what is the equilibrium composition of the mixture? See this table for data on the reaction. P Br2 ? mbar PCl2 ? mbar P BrCl ? mbar

Given the following matrix of transition probabilities, write three equations that, when solved, will give the equilibrium state values. P = large bracket with a b on top and c d directly under that, closed large bracket. Thanks.

1. Consider a calorimeter into which 135g of water at 45.3 degrees Celsius is added. The initial temperature of the calorimeter was 23.8C and the equilibrium temperature of the water and the calorimeter is 39.6C. Assuming there is no heat loss to the surroundings, what is the ...

A 5.0g Sample of KBr at 25.0 degrees celsius dissolves in 25.0 degrees celsius 25.0 mL of water also at 25.0 degrees celsius. The final equilibrium temperature of the resulting soltution is 18.1 degrees celsius. What is the enthalpy of of solution in kilojoules per mole of KBr?

1. Which of the following exerts the most influence over the policies and actions of Japan's House of Representatives? A. The Japan Socialist Party B. The Liberal Democratic Party C. The Supreme Court D. the bureaucracy I'm stuck between b and d? 2. Japan is a unitary state, ...

1 The golden age of culture came during which empire? A.Roman B.Persian C.Gupta D.Mauryan** 2. This raja conquered weak kingdoms left by alexander the great ? a) Chandragupta Maurya*** B) Asoka C) Hari Krishna D) Vishnu 3. In this section of the Mahabharata, Krisha talks about...

1.What is the sum of 5/6 + 2/3? (1 point) MY ANSWER C. a.1 1/3 b.1 1/2 c.1 2/3 d.1 3/4 2.Sue needs 2 1/3 cups of flour for a batch of cookies.How many complete batches can she make with 10 cups of flour? (1 point) MY ANSWER D. a.5 batches b.3 batches c.2 batches d.4 batches 3....

acetaldehyde Ch3Cho will decomposed into methane and CO according to Ch3Cho>ch4+Co at 450 C the rate consumption of Ch3cho is measured to vary with the concentrate of heliumCh3Cho raised to the power 1.5 with a Ch3Cho concentrate of 0.222 M ,the rate of consumption of ...

A pile of sand that is stockpiled for winter road treatment is in the shape of a perfect cone. The beginning diameter is 110ft and the height at the center is 24ft. Assume wet sand weighs 3400 lbm/yd3. a) How many cubic yards of sand are in the pile? b) What is the mass o the ...

Mrs Koh bought some pens, files and erasers. The ratio of the number of pens to the number of files to the number of erasers she bought was 1 : 2 : 3. The cost of each pen and eraser is $2.50 and $0.50 respectively. If she spent $60 on the pens and the erasers, how many files ...


It is often suggested that the Bank of Canada try to reduce the inflation rate to zero. If we assume that velocity is constant, does this zeroinflation goal require that the rate of money growth equal zero? If yes, explain why. If no, explain what the rate of money growth ...

The ratio of cats to dogs is 2:1 and the ratio of dogs to parrots is 15:2. In addition, the ratio of parrots to snakes is 3:1 and the ratio of snakes to turtles is 6:7. What is the ratio of cats to turtles?

A 0.040M solution of a monoprotic acid is 14% ionized. Calculate the Ka for the weak acid.  so: HX <> H+ + X Ka= [H+][X]/ [HX] Since its a monoprotic acis i know the concentration of H and X will be equal And the HX will be 86% (100%14%) BUt i m not...

A beam of electrons with momentum p=10^23 kg m/s passed through a narrow slit of width d=10^5 m. What is the uncertainty component of the momentum in the xdirection due to the uncertainty principle (approximately)? a. change in p greater or equal to 10^26 kg m/s b. change ...

Which of the following best describes the difference between a mixture and a pure substance? A. A mixture is made up of more than one type of atom; a pure substance is made up of only one type of atom. B. A mixture has the same properties throughout; a pure substance has the ...

Increased suffrage and the development of new political parties in the early 1800s indicate which of the following? A. Expansion of democracy B. Restriction of democracy C. Increase in the power of individual states D. Decrease in the power of individual power I'm thinking A or C

hi! Im having trouble with this question about matrices the matrix X = (4 2) (2 4) X to the power of two = 2 (10 8 ) or ...(8 10) 4(5 4) ..(4 5) X to the power of three = 2 (56 52) ...(52 56) or 8 (14 13) .......(13 14) and so on... I have to figure out an "pattern" so i can ...

The mass of the earth is 5,96 multipy by 10 to the power of 2) kg and that of the moon 7,35 multiply by 10 to the power of 22kg.If the distance between their centres is 3,84 multiply by 10 to the power of 8m,calculate the mass of each ball.

The mass of the earth is 5,96 multipy by 10 to the power of 2) kg and that of the moon 7,35 multiply by 10 to the power of 22kg.If the distance between their centres is 3,84 multiply by 10 to the power of 8m,calculate the mass of each ball.

A lottery draws n numbers, values 1N , from a hopper that replaces the number after it is drawn, i.e. probability of each number appearing remains constant. At the end, the winning number is drawn from the same hopper. What is the probability that the number selected at first...


A lottery draws n numbers, values 1N , from a hopper that replaces the number after it is drawn, i.e. probability of each number appearing remains constant. At the end, the winning number is drawn from the same hopper. What is the probability that the number selected at first...

A 85Kg firefighter climbs up a ladder at a constant speed of 2.5 m/s. What average power does the firefighter expend to overcome gravity?

A string that passes over a pulley has a 0.373 kg mass attached to one end and a 0.620 kg mass attached to the other end. The pulley, which is a disk of radius 9.50 cm, has friction in its axle. What is the magnitude of the frictional torque that must be exerted by the axle if...

An equilibrium mixture of SO2,SO3 and O2 gases is maintained in a 11.5 L flask at a temp at which Kc=55.2 for the rxn: 2SO2 + O2 <> 2SO3. If the # of moles of SO2 and SO3 are =, how many moles of O2 are present? I let SO2 and SO3 =x and O2=y. Since SO2 and SO3 will ...

If the initial pressure of NH3(g) is 7.845 atm, calculate the % of NH3(g) left over after the reaction reaches equilibrium according to the balanced equation. The value of Kp at 600.0 °C is 455000.00. The initial pressure of the reaction products is 0 atm. 2NH3(g) = N2(g)+3H2...

Could you help me with this homework please.. 105.0 g of water is in a Styrofoam calorimeter of negligible heat capacity. The initial T of the water is 17.1oC. After 288.2 g of an unknown compound at 77.0oC is added, the equilibrium T is 25.1oC. What is the specific heat of ...

A force F acts to the right on a 4.81 kg block. A 2.53 kg block is stacked on top of the 4.81 kg block and can slide on it with a coefficient of friction of 0.2 between the blocks. The table has a coefficient of friction of 0.23. The acceleration of gravity is 9.8 m/s 2 . The ...

I am having a hard time answering these questions. I just need them explained to me so that I really understand them, when I get ready to take my test. 1. How do changes in demand/supply affect prices? 2. How does a change in demand/supply affect the equilibrium price? 3. How ...

carbon disulfide is prepared by heating sulfur and charcoal. the chemical equation is S2(g)+C(S)=CS2(g) and Kc = 9.4 at 900K. How many grams of CS2(g) can be prepared by heating 8.9moles of S2(g) with excess carbon in a 5.00L reaction vessel held at 900K until equilibrium is ...

A thermos bottle contains 250 g of coffee at 88 0C. You then decide to add 27 g of milk at 5 0C. What is the equilibrium temperature of the mixture? Assume no heat is loss to the thermos bottle and that the specific heat of water, coffee and milk is about the same. Answer is ...


if the ratio of interior angle of triangle are 4:11:3.Find the greater angle.* i am confused about the word greater does the question need the angle with 11 ratio or 4 ratio?

If the initial pressure of H2S(g) is 7.404 atm, calculate the % decomposition of H2S(g) when the reaction comes to equilibrium according to the balanced equation. The value of Kp at 1132 °C is 0.0265. The initial pressure of the reaction products is 0 atm.

A solution of a weak acid will consist of the acid and its conjugate base. True or False false Yes, of course: Take acetic acid acetic acid + H2O<>H3O+ + acetateion The system is in equilibrium. true

Shelly compared the number of oak trees to the number of maple trees as part of a study about hardwood trees in a woodlot. She counted 9 maple trees to every 5 oak trees. Later in the year there was a bug problem and many trees died. New trees were planted to make sure there ...

An escalator in a department store is driven by a large electric motor whose power consumption changes with the load to keep the escalator moving at a constance velocity, up to a certain maximum power capacity. An escalator working at 0.22 of its maximum power capacity lifts ...

A radioactive substance has a halflife of 4 days. Suppose we have 800 mg of this substance. a) Find the equation of the mass remaining after t days. Use the exact value for k not a decimal approximation. b) Rounding your answer to the nearest tenth of a mg, find the mass ...

A radioactive substance has a halflife of 4 days. Suppose we have 800 mg of this substance. a) Find the equation of the mass remaining after t days. Use the exact value for k not a decimal approximation. b) Rounding your answer to the nearest tenth of a mg, find the mass ...

The ionization constant of HF is 7.2 × 10−4. What is the molar concentration of H+ in a solution which is 0.353 molar in HF and 0.145 molar in KF?

A 200 mL NaCl solution with a concentration of 4.0 g/L is mixed with a 600 mL solution containing 8% NaCl (m/v). What is the final concentration of salt in the solution in g/L?

The number has 7 digits It is evenly divisible by 100 The value of one of the digits is 60,000 The digit in the hundreds place is both even and prime The digit in the thousandr place is half the value of the digit in the ten thousands place The digit in the hundred thousands ...


The weight of a termite mound (y) in kilograms is measured each month (x) after it was first found. The mound after 1 month is found to be 2 kilograms and after 3 months it is measured at 18 kilograms. It is believed that the model connecting the weight of the mound to the ...

Dori claims that 3.52 is not a rational number because it is not written as a ratio of integers. Is she correct? Explain why or why not.

Need help with AP chemistry, specifically Acids and Bases The acid ionization constant, Ka, for propanoic acid, C2H5COOH, is 1.3 10 5 . (a) Write the expression for the aciddissociation constant, Ka for propanoic acid. (b) Calculate the hydrogen ion concentration, [...

A wheel and axle arrangement has an axle with a diameter of 25cm. A rope is wrapped around the axle and is supporting a load of 2 tonnes. 1) If the mechanical advantage of the system is 30, determine the diameter of the wheel___________m. 2)Determine the effort required to ...

Suppose there is a simulation of 25 helium molecules and 25 nitrogen molecules on the right hide of a box before the rate of effusion. Suppose you carry out this simulation and it does not give a precise quantitative reflection of Graham's Law. >What could be done to ...

Suppose there is a simulation of 25 helium molecules and 25 nitrogen molecules on the right side of a box before the rate of effusion. Suppose you carry out this simulation and it does not give a precise quantitative reflection of Graham's Law. >What could be done to ...

Ammonium iodide dissociates reversibly to ammonia and hydrogen iodide: NH4I(s) ↔ NH3(g) + HI(g) At 400ºC, Kp = 0.215. If 150 g of ammonium iodide is placed into a 3.00L vessel and heated to 400ºC, calculate the partial pressure of ammonia when equilibrium is reached ...

I am not sure how to draw the graphs can anyone help answer this question for me? Suppose that the supply schedule of Maine lobster is as follows: Price of Lobster Quantity of lobster supplied (Per Pound) (Pounds) $25 800 20 700 15 600 10 500 5 400 Suppose that Maine lobsters ...

I've read the Elite Power,and i know what Mills definition of Elite Power is. But I'd would like to know what is the purpose of the Elite Power? According to C.Wright Mills, what is the Elite Power about?

Which expression is equivalent to 32 ⋅ 3−5? fraction 1 over 3 to the power 3 fraction 1 over 3 to the power 7 fraction 1 over 3 to the power negative 3 fraction 1 over 3 to the power negative 7


Suppose you are given a list of solutions (all with nonvolatile solutes) and their concentrations. You pick out the one with the lowest freezing point. It should also have (pick all that apply): the lowest boiling point the highest osmotic pressure the lowest solvent vapor ...

If you have a circle graph 15 students like basketball 10 like soccer and 5 like softball. Write a ratio problem that relates to this graph and solve the problem. ratio would be 5/6,1/6,1/3 how would a solve this if this is the right ratio. Thank you so much for your help.

Suppose you find the ratio of the lengths of adjacent sides in a parallelogram. This ratio is equivalent to the ratio of the adjacent sides in another parallelogram. Are the figures similar? Explain.

a company borrowed $3100. it must make monthly payments of $178.37 for 18 months to pay off the loan. Ust the constant ratio formula to find the annual percentage rate...thanks for helping me....kk

the sum of the digits of a three digit number is 20. the middle digit is equal to one fourth the sum of the other two. if the order of the digits be reversed the number increases the original by 198 find the original number

A 10.8g sample of a gas has a volume of 5.25L at 25 degrees Celsius and 766mmHg. If 2.3g of the same gas is added to this constant 5.25L volume and the temperature raised to 68 degrees Celsius, what is the new gas pressure?

1 The golden age of culture came during which empire? A.Roman B.Persian C.Gupta D.Mauryan** 2. This raja conquered weak kingdoms left by alexander the great ? a) Chandragupta Maurya*** B) Asoka C) Hari Krishna D) Vishnu 3. In this section of the Mahabharata, Krisha talks about...

The park had initially planned to charge $8 for admission and expected to have 2400 visitors a day. Allison and Juan were assigned the task of analyzing the park's admission revenues. 1.a)How much revenue would the park have for one day at the current price? b)They have been ...

the number has 7 digits it is evenly divided by 00 the value of one of the digits is 60,000 the digit in the hundredth place is both even and prime the digit is the thousands place is 1/2 the value of the digit in the ten thousand place the digit in the hundred thousands place...

I'm doing chemical equilibrium, and there's a question in my lecture notes. Can someone check my answers and tell me if i'm right or wrong? Thanks! The Kc expression for this reversible reaction: 3Fe(s) + 4H2O (g) >< Fe3O4(s) + 4H2 (g) is [H2]^4 / [H2O]^4 Am I ...


ive tried the ice method but i keep on getting it wrong please help. If the initial pressure of NH3(g) is 3.168 atm, calculate the % decomposition of NH3(g) when the reaction comes to equilibrium according to the balanced equation. The value of Kp at 427.0 °C is 12800.00. The...

I also had a problem with this type of questionthe initial pressure of NOCl(g) is 4.329 atm, calculate the % of NOCl(g) left over after the reaction reaches equilibrium according to the balanced equation. The value of Kp at 400.0 °C is 1.99. The initial pressure of the ...

I am stuck on both of these questions. Would you please tell me if my reasoning is correct? 1. An object is dropped off a building. When comparing the average velocity of the object over equal time intervals, explain the difference between early time intervals and later time ...

I left out the following sentences. Thank you very much in advance. 1) It was raised 4 feet FROM/OFF the ground (both possible?) 2)Elizabeth fought a big ship war (?? naval war) against the Spanish Armada. She made England a seafaring power also thanks to piracy against ...

The power P delivered to a load by a current of i amperes through a resistance of 19 ohms, when 110 volts are supplied at one end of the line, is given by the formula P = 110i  19i2 . Determine the maximum power that can be delivered. maximum power in watts =

Selina has a homework consisting of 4 questions.In each question,she needs to find the value of each power.When she turns in her homework,her teacher says she got 3 correct answers which of the following values did she calculate incorrectly? a.(3)0 = 1 b.(3)2 = 9 c. 3 2 =9 ...

a number has 4 digits. no digits in the number are repeated. the digit in the tens place is three times the digit in the thousands place. the number is odd. the sum of the digits in the number is 27. what is the number? I started with the 10s and 1000s place. To sum up to 27, ...

Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acidbase relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

A 35g block of ice at 14°C is dropped into a calorimeter (of negligible heat capacity) containing 400 g of water at 0°C. When the system reaches equilibrium, how much ice is left in the calorimeter? The specific heat of ice is 2090 J(kg K) and the latent heat of fusion of ...

Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acidbase relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.


Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acidbase relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acidbase relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acidbase relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acidbase relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acidbase relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.
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