50 Answered Questions for the topic Equilibrium

Equilibrium Chemistry


Calculate the pH of 0.58 M solution of sodium benzoate?

What is the pH of a 0.58 M solution of sodium benzoate, NaC6H5COO(aq)? Ka = 6.3x10-5 for benzoic acid (weak acid), HC6H5COO(aq).
Equilibrium Chemistry


Equilibrium Chemistry (Can Someone Solve This)

2H2Cl(g) <--> 2H2(g) + Cl2(g)A 4.30 g sample of H2Cl(g) is introduced into an evacuated rigid 1.50 L container. Upon heating to 423 K, hydrogen chloride gas decomposes, and 0.0130 moL of... more


Real Life Examples of Solubility

What are some real life examples of when an experiment/procedure of temperature and the solubility of salts will have to be conducted? And why do these experiments have to be conducted?
Equilibrium Chemistry Water Solubility


Solubility equilibrium - Review question help!

The solubility of ZnCO3 in water is quite low. What could you add to increase the solubility? Explain how your method works in detail.

Equilibrium - LeChatelier's Principle and the Keq

I am given this equilibrium equation : Co(H2O)6+2 + 4Cl - <==> CoCl4-2 + 6H2OI need to find the concentrations of each of the compounds in order to calculate for the value of Keq. I know the... more
Equilibrium Math Chemistry Homework


Chemistry Dynamic Equilibrium - HELP

I don't understand this chart, but based on the question itself I assume either increasing or decreasing the temperature, decreasing the pressure, and increasing or decreasing the concentration of... more
Equilibrium Chemistry


Barium fluoride, BaF2, has a measured solubility of 0.02 mol/L at 25°C. What is the solubility product constant?

Barium fluoride, BaF2, has a measured solubility of 0.02 mol/L at 25°C. What is the solubility product constant?
Equilibrium Chemistry


I need help with some AP chem problems, thanks in advance!

Consider the reaction shown below. Which of the following changes would cause the equilibrium to shift      left?CaCO3 (s) + H2SO4 (aq) ↔ CaSO4 (s) + H2O (l) + CO2 (g)   ΔH = -122 kJ (A) Carbon... more
Equilibrium Chemistry


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
Equilibrium Chemistry


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
Equilibrium Chemistry University Help


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?
Equilibrium Physics Gravity Forces


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
Equilibrium Chemistry


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
Equilibrium Chemistry


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
Equilibrium Chemistry


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
Equilibrium Physics Ap Physics Torque


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
Equilibrium Chemistry Catalyst


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


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?


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


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.
Equilibrium Chemistry Solubility


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? 
Equilibrium Chemistry


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. 


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
Equilibrium Chemistry


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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