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Equilibrium Chemistry

12/17/19

What is the pressure of the C2H5OH vapor at 650k before it decomposes?

92.5kj + C2H5OH<->H2+CO +CH4 A 15.50-gram sample of C2H5OH liquid is placed into a 4.50-liter flask and heated to 650.0 k. The sample is vaporized, and then begins to decompose. What is the... more

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Equilibrium Chemistry

12/17/19

What is the equilibrium reaction for stomach acid (can be with food or medicine)?

I am doing an assessment and need to find a correlation between stomach acidity and medicine and then relate this to an equilibrium reaction / constant. If anyone has any ideas would be extremely... more

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Equilibrium Chemistry University

10/27/19

Equilibrium Question

Consider the reaction: A(aq) ---> 3B(aq) Kc= 1.28x10^-6 at 500KIf a 2.70M sample of A is heated to 500K, what is the concentration of B at equilibrium?

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Equilibrium Physics Gravity

08/02/19

When a ball is tossed straight up, does it experience momentary equilibrium at top of its path?

This question has been asked many times all over the Internet and answers can be found on places such as yahoo and ask.com, but I'm not satisfied with those answers and I don't trust the validity... more

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Equilibrium Chemistry

04/16/19

which of the following statements are true about equilibrium systems?

True False For the following reaction at equilibrium: CaCO3(s) ⇌ CaO(s) + CO2(g) adding more CaCO3 will shift the equilibrium to the... more

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Equilibrium Chemistry

03/02/19

What is the pressure of BrCl in an equilibrium mixture of Cl2, Br2, and BrCl if the pressure of Cl2 in the mixture is 0.115 atm and the pressure of Br2 in the mixture is 0.450 atm?

What is the pressure of BrCl in an equilibrium mixture of Cl2, Br2, and BrCl if the pressure of Cl2 in the mixture is 0.115 atm and the pressure of Br2 in the mixture is 0.450 atm? Kc=4.7*10^-2

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Equilibrium Chemistry

02/13/19

Chemistry Reaction Equilibrium help??

0.7 mol of A(g), 0.5 mil of B(g), 0.4 mol of C(g) and 0.9 mol of D(g) were placed in a one litre vessel and allowed to come to equilibrium according to the following equation : A(g) + B(g) ⇔ C(g) +... more

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Equilibrium Physics Ap Physics

02/08/19

Torque Problem (Door)

Question: Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 17.5 N at a distance of 0.600 m from the... more

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Equilibrium Chemistry Catalyst

11/24/18

Are the following aspects of a catalyzed reaction different from the uncatalyzed reaction?

Are these aspects different in a catalyzed reaction?1. The mechanism2. ΔE rxn3. The overall equation

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Equilibrium

11/02/18

Equilibrium question

Consider the reaction N2O4 (g)---------2NO2 (g).(reversible). If 0.2 is the degree of disassociation , starting with 2.0 moles of N2O4 , the total number of moles at equilibrium would be?

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Equilibrium

11/02/18

A vessel at 1000 K contains CO2 with a pressure of 0.5 atm. Some of the CO2 is converted into CO on the addition of graphite. If the total pressure at equilibrium is 0.8 atm, the value of Kp is?

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Equilibrium

11/02/18

Equilibrium question

Te disassociation equilibrium of a gas AB2 can be represented as: 2AB2(g)---------2AB(g) + B2(g) . The degree of disassociation is 'x' and is small compared to 1. The expression relating the degree... more

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Equilibrium

10/06/18

how is Fe{3+} affected when you ADD HPO4{2+}?

Solution: Fe{3+}(aq) + SCN{-}(aq) —> Fe(SCN){2+}(aq)I know that the color gets clear when you add HPO4{2+}, but I don’t know why.

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Equilibrium Chemistry Solubility

09/11/18

What is the maximum concentration of silver ions that can be present in a 2.0 x 10^-3 M sodium chloride solution?

How would this question be approached?

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Equilibrium Chemistry

07/22/18

Hb(aq) + O 2(g) ↔ HbO 2(aq)

I am asked to write an equilibrium expression, and to include the term pO2 for the oxygen gas term.

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Equilibrium

01/23/18

Calculating constant equilibrium

how do you calculate the constant equilibrium if what's known is ONLY the initial concentration of cC and dD aka the products. Using the ice table how do you determine what the Keq if the... more

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Equilibrium Chemistry

01/07/18

equilibrium shift using haber process

Using the Haber process (produces NH3 from Nitrogen and hydrogen gas) give 2 situations which would shift the equilibrium to the right and give 2 examples/situations which would shift the... more

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Equilibrium Enzyme Kinetics

12/29/17

Why is the Kd equation Kd=Koff/Kon instead of K=Kon/Koff?

Lets say a general equation for enzymes is E+S<-->ES<-->E+P, and an expression for the Kd of the enzyme is Kd=[E]+[S]/[ES]. Most K expressions are [Products]/[Reactants], right? In the... more

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Equilibrium

10/30/17

Can an irreversible reaction be a reversible reaction

Can a reversible reaction be an irreversible reaction and an irreversible reaction be a reversible reaction

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Equilibrium

12/28/16

I have doubt in derivation of the relation between Ka and Kb in ionic equilibrium topic

While deriving the relation between Ka and Kb in ionic equilibrium topic, say I take an example of NH4+ + H2O ----> NH3 + H3O+ ......(1)Ka of this reaction is : [NH3][H3O+]/[NH4+][H2O]Now NH3 is... more

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Equilibrium Chemistry

11/08/16

CHEMICAL EQUILIBRIUM DOUBTS

4 moles of PCl5 are heated in a closed container of 4 dm3 container at 400 k. At equilibrium, 50% of PCl5 is dissociated. What is the value of Kc for the dissociation of PCl5 into PCl3 and Cl2 at... more

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Equilibrium Forces Mechanical Physics

10/30/16

equilibrium of turning moments

https://postimg.org/image/m5vobypg3/

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Equilibrium Chemistry Chemical Reactions

09/22/16

Why doesn't NaCl and HCl have the same effect on an equilibrium reaction

Recently in my AP Chem class we did a simple reaction demonstrating equilibrium: [Co(H2O)6]2+(aq)(pink) + 4Cl-(aq) <--> [CoCl4]2-(aq)(blue) + 6H2O(l) (in an ethanol solution). The reaction... more

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Equilibrium Chemistry Constant

04/10/16

How do I calculate the equilibrium constant from Delta G?

Carbon disulfide is a foul-smelling solvent that dissolves sulfur and other nonpolar substances. It can be made be made by heating sulfur in an atmosphere of methane.For the reaction below, Delta... more

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Equilibrium Chemistry Moles

03/16/16

How do I work out the molarity and equilibrium constant using moles of reactants?

The equation is C2H5OH(aq) + CH3CO2H(aq) ? CH3CO2C2H5(aq) + H2O(l) Moles of ethanol: 0.0747 Moles of ethanoic acid: 0.0112 amount of ethanol used in experiment: 4cm3 amount of ethanoic... more

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