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Chemical Equilibrium
Page 9
Questions (1,115)
Consider this reaction: CO (g) + H2O (g0 <---> CO2(g)+H2(g)
kc=102 at 500 K A reaction mixture initially contains 0.145 M of CO
2 answers
asked by
Katie
1,125 views
2H2 (g) + O2 (g) <---> 2H2O (g)
what is the likely magnitude of the equilibrium constant? a) k < 10 ^-3 b) 10^-3<K<10^3 c)k=0
4 answers
asked by
Katie
1,709 views
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
2 answers
asked by
Tommy
520 views
defie le chatelier's principle and the role equilibrium plays in the reduction of stress
3 answers
asked by
lala
568 views
The Ksp of PbI2 is 8.7x10^-9. Find the solubility of lead(II) iodide on mol/L.
a. 1.3x10^-3 b. 9.3x10^-9 c. 6.6x10^-5 d.
3 answers
asked by
dude
1,132 views
Foe Fe(OH)2, Ksp=8 x 10^-16. What is the molar concentration of OH- in a saturated Fe(OH)2 solution?
3 answers
asked by
Michelle
842 views
In a saturated solution of silver phosphate, the concentration of silver is 4.5 x 10^-4 mol/L. What is the Ksp of silver
4 answers
asked by
Brittany
845 views
At what initial concentration would a solution of acetic acid (ka=1.8x10^-5) be 2% ionized?
Thanks
4 answers
asked by
Needs help, please!
522 views
A <---> 2B + C
at a certain temperature the equilibrium pressure of the system is 0.318atm. Determine Kp for this reaction.
3 answers
asked by
Tri
707 views
For the gaseous equilibrium represented below, it is observed that greater amounts of PCl3 and Cl2 are produced as the
3 answers
asked by
Luke
1,395 views
The correct interpretation of the equation below is:
Fe3+(aq) + SCN–(aq) --> and <-- FeSCN2+(aq) A. A heterogeneous equilibrium
4 answers
asked by
Lindsey
1,708 views
Liquid Nitrogen tetroxide, N2O4(l), was used as a fuel in Apollo missions to the moon. In a closed container the gas N2O4(g)
3 answers
asked by
Claus
1,095 views
How will the following system at equilibrium shift in each of the following cases?
2 SO3(g) <--> 2 SO2(g) + O2(g) H° = 197 kJ
3 answers
asked by
PHD Hopeful
1,238 views
2.5 mol NOCl(g) was placed in a 2.50 L reaction vessel at 400 degrees C. After equilibrium was established, it was found that
3 answers
asked by
Rick
2,943 views
Please tell me if these are right.
1.According to Le Chatelier’s principle, what is the effect on the products when N2 is added
4 answers
asked by
Carrie
1,338 views
When 1.00 mol of A and 0.800 mol of B are placed in a 2.00 L container and allowed to come to equilibrium, the resulting mixture
6 answers
asked by
Ricky
2,508 views
The decomposition reaction for PCl5 for which the equilibrium constant is 0.030. If you begin an experiment with 0.040M PCl5.
4 answers
asked by
Kathy
1,272 views
1. For the reaction 2N2O(g) ⇋ O2(g) + 2N2(g), what happens to the equilibrium position if the pressure decreases?
A. Shift to
3 answers
asked by
josh
3,541 views
Which statement is true of a system at equilibrium?
a) Changes in the system are visible, but there are no changes at the
1 answer
asked by
Someone
100 views
Mn (OH) 2 has a molar solubility of 2.2 x 10 − 5 M. Calculate the Ksp value for Mn(OH) 2 .
1 answer
asked by
Yuka
148 views
You didn't substitute correctly for Keq. You should calculate
log Keq = (Pb)(Ni^2+)/(Ni)(Pb^2+) You made log Keq = 0.27. You
1 answer
asked by
DrBob222
185 views
A 0.900 M aqueous solution of a weak base is 14% dissociated. What is the base dissociation constant? (A= 2.1e-2)
I started by
1 answer
asked by
John
260 views
How would removing NH3 affect the equilibrium?
1 answer
asked by
Anita
282 views
1. A 0.44 M aq solution of weak acid is 1.7% dissociated at equilibrium. Calculate value Ka for the acid
1 answer
asked by
Lay
257 views
3N2H4 + 4ClF3 = 12HF + 3N2 +2Cl2
Intially: 0.880 atm N2H4, 0.970 atm CIF3. At equilibrium Partial pressure N2 = 0.525 atm. Find
1 answer
asked by
Zin
205 views
1. Each of the following reactions were in equilibrium when the pressure of their containers was doubled. Chose which way the
1 answer
asked by
Alla
216 views
calculate kp for reactiontso2+No2
1 answer
asked by
zako
322 views
If the solubility of CaCO_3 in water at 25°C is 5.84 ✕ 10^−3 g/L, calculate the solubility-product constant (Ksp) of
2 answers
asked by
Jamie
579 views
Consider the following reaction:
2 HI (g) → H2 (g) + I2 (g) Assume that an experiment is carried out in which the starting
2 answers
asked by
Michael
555 views
A sample of NH4HS(s) is placed in a 2.61 −L flask containing 0.120 mol NH3(g).
NH4HS(s)⇌NH3(g)+H2S(g) KP=0.108 at 25∘C What
4 answers
asked by
Jasper
1,162 views
For the reaction, XBr2(g) <--------> X(g) + Br2(g), if a container is charged to an initial concentration, [XBr2] = 2.00 mol/L
2 answers
asked by
Steve
467 views
For the reaction 2HI(g) <----> H2(g) + I2(g),
Kc = 0.0198 at 721K. What is the HI concentration at 721K if [H2] = 0.120 M and
1 answer
asked by
My Q being neglected...
463 views
For the reaction 2HI(g) <----> H2(g) + I2(g),
Kc = 0.0198 at 721K. What is the HI concentration at 721K if [H2] = 0.120 M and
1 answer
asked by
Annika
477 views
Calculate the relative concentration of phenol (ka=1.05x10^10) and phenolate ion in a solution with 0.05M total phenol (pH=7.5)
3 answers
asked by
Siobhan
884 views
The equilibrium constant for the reaction
Sr(s) + Mg2+(aq) <---> Sr2+(aq) +Mg(s) is 3.69 x 10^17 at 25 C. Calculate Ecell for a
3 answers
asked by
danielle
1,722 views
Find a hydroxide-ion concentration in an aqueous solution having a pH of 2. Express your answer using one significant figures.
I
2 answers
asked by
Hannah
538 views
Calculate the concentrations of all species in a 0.320-M solution of H2X if K1 = 6.31E-06 and K2 = 3.71E-09
[H2X] = [H3O1+] =
2 answers
asked by
Maggie
650 views
Calculate the concentration of O 2 if K c = 270 for the reaction
2SO 2 (g)+O 2 (g)⇌2SO 3 (g) .
1 answer
asked by
james
367 views
GIVEN THE SYSTEM,
SO2 + O2 = 2SO3 WRITE DOWN THE EXPRESSION FOR Kc AND STATE IT UNIT
1 answer
asked by
value
413 views
The equilibrium constant for the formation of phosphorus pentachloride is 1.9. If the partial pressure of each gas is 0.5 atm,
3 answers
asked by
Jessie
890 views
When are more products of a reaction available initially than at equilibrium?
A. K = 0 B. Q < K C. Q = K D. Q > K
1 answer
asked by
jessie
379 views
The [OH-] ion concentration of a sample is 1 × 10-10 M. What is the concentration of [H+] in the sample at 25°C?
A. 1 × 10-14
3 answers
asked by
erika
628 views
How can we calculate the HCO3- (bicarbonate ion) concentration in water in 25C pH7.0?
I think we can use PV=nRT equation, but I
1 answer
asked by
Anonymous
459 views
calculate the concentration of acetic acid in a 0.85 m sodium acetate solution,when ph=7,knowing that for the acetic acid,ka=
1 answer
asked by
Anonymous
380 views
For A+2B <---> 2C : K=2.23
For 2C <---> D : K=0.27 What is the value of the equilibrium constant for the reaction: 2D <---> 2A +
1 answer
asked by
kay
360 views
The two common chlorides of Phosphorus, PCl3 and PCl5, both important in the production of other phosphorous compounds, coexist
4 answers
asked by
Anonymous
2,220 views
KC for reaction is 55.0 at 700C calculate the equilibrium concentration of reaction and products when the initial consultation
1 answer
asked by
aurangzeb
393 views
Determine [OH-] of a solution that is 0.135 M in CO3^2-.
I got 0.00532.
2 answers
asked by
Nevaeh
896 views
At a certain temperature, the reaction H2(g)+ Cl(g)=2HCl(g)has Kc = 5 x 10^8. If a reaction mixture at equilibrium contains 0.48
2 answers
asked by
Alice
733 views
2HI(g)--H2(g) + I2(g) k eq= 8.0
2.0 mol of HI are placed in a 4.0L container, and the system is allowed to reach equilibrium.
3 answers
asked by
George
776 views
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Parent Categories (7)
Chemical Reactions
Chemistry
Inorganic Chemistry
Physical Chemistry
Science and Chemistry
Stoichiometry
Thermodynamics