Chemistry, 10.03.2020 07:17 nerual0503
Chlorine dioxide, ClO2, is a reddish-yellow gas that issoluble in water, in basic solution it givesClO3- and ClO2- ions:
2ClO2 (aq) + 2OH-(aq) -> ClO3- (aq) + ClO2- (aq)+ H2O
To obtain the rate law for this reaction, the following threeexperiments were run and, for each, the initial rate of reaction ofClO2 was determined.
Initial Concentration(mol/L)
ClO2 Initial Concentration(mol/L)
OH- Initial Rate
(mol/((L s))
Exp. 1 0.060 0.030 0.0248
Exp. 2 0.020 0.030 0.00276
Exp. 3 0.020 0.090 0.00828
Exp. 4 0.040 0.060 ?
Question:
a) What is the rate law equation for the reaction ? Rate =
ans: k[ClO2]2[OH-]
b) Find the value of the rate constant, k.
ans: 230 M-2 s-1.
c) Predict an initial rate for the Experiment #4.
ans: 0.0221 mol/(L s).
This is from my old quiz; but I could not separate the question;I already have answers;
You can separate answers; Thank you.
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