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Equilibrium
Page 8
Questions (1,757)
Two boys weighing 60 pounds and 80 pounds balance a seesaw. How many feet from the fulcrum must the heavier boy sit if the
4 answers
asked by
jade
1,959 views
The equlibrium contstant for equation
HNO2(aq) + H2O(l) <--> H3O+ (aq) + NO2-(aq) is Ka = 5.6 E-4 M at 25.0 C. What is the value
3 answers
asked by
College Student
854 views
Two blocks M1 and M2 are connected by a massless string that passes over a massless pulley as shown in the figure. M1 has a mass
3 answers
asked by
meg
1,800 views
Given the following reaction:
XBO3(s) <--> XO(s) + BO2(g) If the concentration of BO2 at equilibrium was 2.0 M, what is the
3 answers
asked by
Sarah foster
1,353 views
Calculate the pH of a 0.033 M solution of sodium ascorbate, Na2C6H6O6. For ascorbic acid, H2C6H6O6, Ka1 = 7.9 × 10-5 and Ka2 =
6 answers
asked by
Is my answer right?
2,671 views
Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the
4 answers
asked by
Jane
3,094 views
At 450oC the value of equilibrium constant for the following system is 6.59 x 10-3. If [NH3] = 1.23 x 10-4 and [H2] = 2.75 x
3 answers
asked by
SHIV
1,274 views
A reaction has a standard free-energy change of –10.30 kJ mol–1 (–2.462 kcal mol–1). Calculate the equilibrium constant
11 answers
asked by
Angely R.
2,671 views
What is an equilibrant?
(Points : 1) an object that has zero net force acting on it two chemical reactions proceeding at the same
7 answers
asked by
Gynelli
2,617 views
A biochemist prepares a lactic acid-lactate buffer by mixing 225 mL of 0.85M lactic acid with a Ka=1.38*10^-4 with 435mL of
4 answers
asked by
Mike
3,049 views
HCOOH(aq) <-----> H^+ (aq)+ HCOO^-(aq)
The equilibrium constant (Ka) for Reaction 3 at 25 °C is 1.80 × 10−4 mol dm−3.
6 answers
asked by
Mark
1,181 views
1.) What are the equilibrium partial pressures of CO and CO2 if co is the gas present initially, at a partial pressure of .912
4 answers
asked by
Ali
1,315 views
the standard free energy change for a chemical reaction is +13.3 kj/ mol. What is the equilibrium constant for the reaction at
3 answers
asked by
nurcan
1,709 views
Five forces act on an object.
(1) 60 N at 90° (2) 40 N at 0° (3) 80 N at 270° (4) 40 N at 180° (5) 50 N at 60° What are the
3 answers
asked by
Conner
925 views
At a certain temperature , 0.960 mol of SO3 is placed in a 3.50 L container.
2SO3 ----> 2SO2 + O2 At equilibrium , 0.190 mol of
4 answers
asked by
Alexis Moran
2,887 views
the force required to maintain an object at a constant velocity in free space is equal to: b: the mass of the object.
c: the
4 answers
asked by
ellen
4,861 views
One cubic meter (1.00 m^3) of aluminum has a mass of 2.70 multiplied by 10^3 kg, and the same volume of iron has a mass of 7.86
3 answers
asked by
Z32
3,311 views
Consider the following equilibrium:
CaCO3(s)<->Ca 2+(aq) + CO3 2-(aq) Which of the following reagents, when added to the
4 answers
asked by
sh
3,103 views
A uniform metre rule balances on a knife edge at the 60cm mark when a weight of 20N is suspended at one end. Calculate the
3 answers
asked by
Sheiyla
187 views
What concentration of Ag+ is in equilibrium with 3.0×10−6 M Co(CN)3−6 and Ag3Co(CN)6(s)?
1 answer
asked by
Jack
394 views
Calculate the Ksp of a saturated solution of Mg(OH)2 upon titration with 0.0100 HCl in the presence of phenolphthalein indicator
3 answers
asked by
Amy
656 views
I posted this before and didn't get an answer but I'm still stuck...
A 3m long, 290N uniform rod is held in a horizontal position
3 answers
asked by
tyger2020
950 views
The system shown below are in equilibrium with m = 2.90 kg If the spring scales are calibrated in newtons, what do they read?
3 answers
asked by
haseeb
1,141 views
The equilibrium constant for the formation of phosphorus pentachloride is 1.9. If the partial pressure of each gas is 0.5 atm,
5 answers
asked by
erika
2,290 views
Carbon monoxide and hydrogen react according to the equation:
CO(g) + 3H2(g) CH4(g) + H2O When 1.00 mol CO and 3.00 mol H2 are
3 answers
asked by
Emily
1,062 views
The equilibrium constant, Kp, for the following reaction is 0.497 at 500 K:
PCl5(g) PCl3(g) + Cl2(g) Calculate the equilibrium
3 answers
asked by
Kayla23
2,231 views
2 Questions (Multi-choice and T/F, though not sure if they're right, and these 2 questions have no correspondence to each other)
7 answers
asked by
Ian
3,531 views
For the formation of ammonia, the equilibrium
constant is known to be 5.2 × 10−5 at 25◦C. After analysis, it is determined
4 answers
asked by
Kira
1,291 views
At 200 °C, Kc = 1.4 x 10-10 for the reaction
N2O(g) + NO2(g) 3NO(g) If 0.174 mol of N2O and 0.337 mol NO2 are placed in a 4.00 L
2 answers
asked by
Anonymous
1,198 views
A chemist studying the equilibrium N2O4(g)<----->2NO2(g) controls the temperature so that keq ( equilibrium constant)= 0.028. At
3 answers
asked by
Anonymous
948 views
What is the Kc for the following equilibrium at 500∘C,
N2(g)+3H2(g)⇌2NH3(g) [H2] = 0.50M , [N2] = 0.50M , [NH3] = 2.0M ?
3 answers
asked by
a
3,580 views
What is Kc for the following equilibrium? For phosphoric acid, Ka1=6.9x10^-3, Ka2=6.2x10^-8 and Ka3=4.8x10^-13
HPO4^-2 + OH^-
6 answers
asked by
Sara
1,042 views
2NF3(g) yields N2(g) + 3F2(g)
When 2.06 mol of NF3 is placed in a 2.00L container and allowed to come to equilibrium at 800K, the
4 answers
asked by
Robby
2,642 views
Consider the following reaction:
2NOCl(g) 2NO(g) + Cl2(g) Initially pure NOCl(g) is placed in a vessel at 3.00 atm. At
3 answers
asked by
Andrew
2,763 views
A body of weight 500N is liying on a rough plane inclined at angle 25 with the horizontal, it ir supported.by an effort P,
5 answers
asked by
Musty
2,254 views
Two colourless solutions are mixed in a stoppered flask. as the reaction proceeds, the resulting solution turns red, and a
4 answers
asked by
Danielle
995 views
A mixture of H2, S, and H2S is held in a 1.0-L vessel at 90°C and reacts according to the equation
H2(g) + S(s) H2S(g). At
4 answers
asked by
Yelnats
1,422 views
A 5.6 kg bag of groceries is in equilibrium on
an incline of 32�. The acceleration of gravity is 9.81 m/s2 . What is the
3 answers
asked by
newtothis
1,063 views
Given the reaction: SO2(g) + NO2(g) = NO(g) + SO3(g) H = -42.6Kj
How will the concentration of SO3 at equilibrium be effected by
3 answers
asked by
Jake Bell
1,494 views
The following equilibrium concentrations were observed for the Haber process at 127 oC:
[NH3] = 3.1 x 10-2 mol L-1 [N2] = 8.5 x
4 answers
asked by
xx
869 views
Water has an equilibrium vapor pressure of 23.8 mm Hg at 25 C. If 1.00 g H2O is sealed in a 20 L flask, what mass will remain in
3 answers
asked by
daniel
1,091 views
Write the balanced equation and solubility product expression for the solubility equilibrium of Mn3(PO4)2: i thought the answer
3 answers
asked by
Jake
2,798 views
If the reaction Fe2N(s) + 3/2H2(g) -> 2Fe(s) +NH3(g) comes to equilibrium at a total pressure of 1 bar, analysis of the gas
4 answers
asked by
Katie
2,200 views
If BaCO3 is placed in an evacuated flask, what partial pressure of CO2 will be present when the reaction reaches equilibrium?
298
5 answers
asked by
Ally
2,766 views
What effect (shift to the right or left) does an increase in temperature have on each of the following systems at equilibrium?
a)
3 answers
asked by
kyle
1,916 views
Kc=5.85x10^-3 at 25 degrees C for the reaction
N2O4(g)<-->2NO2(g) fifteen(15.0) grams of N2O4 is confined in a 5.00-L flask at 25
7 answers
asked by
confused
1,360 views
When solid NH4HS is placed in a closed flask at 28 C, the solid dissociates according to the equation:
NH4HS(s) <=> NH3(g) +
3 answers
asked by
ami
1,767 views
At 850 C, the equilibrium constant Kp for the reaction:
C(s)+CO2(g) >< 2CO(g) has a value of 10.7. If the total pressure in the
3 answers
asked by
Noemi
1,859 views
In a gaseous system at equilibrium with its surroundings, as molecules of A(g) collide with molecules of B(g) without reacting,
4 answers
asked by
A
1,689 views
The free-body diagram in the drawing shows the forces that act on a thin rod. The three forces are drawn to scale and lie in the
3 answers
asked by
Panda
859 views
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