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Question
At an elevated temperature, the equilibrium constant, Kc, for the following reaction is 54.
H2(g) + I2(g) 
2 HI(g)
If the equilibrium concentrations of H2 and I2 are 0.025 mol/L and 0.017 mol/L, what is the equilibrium concentration of HI?
A.5.3 10-4 M
B.2.8 10-3 M
C.0.023 M
D.0.15 M
E.6.6 M
Answer
This answer is hidden. It contains 2 characters.
Related questions
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H2O2(aq) H2O() + 1/2 O2(g)
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What is the boiling point of a solution containing 0.852 g naphthalene(C10H8, molar mass = 128.2 g/mol) dissolved in 14.0 g benzene? The boiling point of pure benzene is 80.10 C and the boiling point elevation constant, Kbp, is 2.53 C/m.
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Q:
Assuming ideal behavior, which of the following aqueous solutions should have the highest boiling point?
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C.0.50 m Ca(NO3)2
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Q:
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Q:
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Q:
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Q:
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Q:
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What is the distance, in atomic radii, along any edge of a body-centered unit cell?
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D.
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Q:
If a metal crystallizes in a primitive cubic lattice, each metal atom has ____ "nearest neighbors."
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If a metal crystallizes in a face-centered cubic lattice, each metal atom has ____ "nearest neighbors."
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C.primitive cubic < face-centered cubic < body-centered cubic
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Which equation represents the number of atoms in a body-centered cubic unit cell?
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B.
C.
D.
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Q:
The solubility product equilibrium constant, Ksp, of silver bromide is 5.4 10-13 at 298 K.
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Q:
What is the equilibrium constant for reaction below at 25 C? (R = 8.314 J/Kmol)2 NO(g) + O2(g) 2 NO2(g)given DfG [NO(g)] = +86.6 kJ/mol and DfG [NO2(g)] = +51.2 kJ/mol.A.3.9 10-13B.1.0C.2.6 1012D.1.6 106E.3.8 1028
Q:
All of the following relationships are true EXCEPT
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Q:
Calculate DrG for the combustion of benzene at 325 K.2 C6H6() + 15 O2(g) 12 CO2(g) + 6 H2O()Species DfH (kJ/mol) S (J/Kmol)C6H6() 49.0 173.3O2(g) 0 205.1CO2(g) -393.5 213.7H2O() -285.8 67.0A.-6386 kJ/mol-rxnB.-6078 kJ/mol-rxnC.-7251 kJ/mol-rxnD.-8611 kJ/mol-rxnE.+1431 kJ/mol-rxn
Q:
If a chemical reaction is exothermic, but not spontaneous, which of the following must be true?
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