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Question
Hydrogen peroxide decomposes into water and oxygen in a first-order process.H2O2(aq) H2O(
) + 1/2 O2(g)At 20.0 C, the half-life for the reaction is 3.92 104 seconds. If the initial concentration of hydrogen peroxide is 0.52 M, what is the concentration after 7.00 days?
A.1.2 10-5 M
B.0.034 M
C.0.074 M
D.0.22 M
E.0.52 M
Answer
This answer is hidden. It contains 2 characters.
Related questions
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Q:
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Which of the following statements is/are CORRECT? If an ionic compound with the formula MX forms a face-centered cubic unit cell with the anions (Xn-) at the lattice points, the cations (Mn+) may occupy1/ one fourth of the tetrahedral holes in each unit cell.2/ all of the octahedral holes in each unit cell.3/ the center of each face in each unit cell.A.1 onlyB.2 onlyC.3 onlyD.1 and 2E.1, 2, and 3
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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If a metal crystallizes in a face-centered cubic lattice, each metal atom has ____ "nearest neighbors."
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Arrange the three common unit cells in order from least dense to most dense packing.
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Which equation represents the number of atoms in a body-centered cubic unit cell?
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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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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
A..
B..
C..
D..
E..
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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Q:
For which of the following reactions will the entropy of the system decrease?A.2 NH3(g) N2(g) + 3 H2(g)B.2 C(s) + O2(g) 2 CO(g)C.CaCO3(s) CaO(s) + CO2(g)D.2 NO2(g) N2O4(g)E.NaOH(s) Na+(aq) + OH-(aq)