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3 years ago

9

Hydrogen peroxide, which decomposes in a first order reaction, has a half-life of 10 hours in air. how long will it take for hyd

rogen peroxide to decompose to 10% of its original concentration?

1 answer:

VLD [36.1K]3 years ago

4 0

Hello! Let me try to answer this :)

Thanks and please correct if there are any mistakes ^ ^

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2 A(g) + B(g) ---> 2 C(g)Rate = k [A][B]At the beginning of one trial of this reaction, [A] = 3.0 M and [B] = 1.0 M. The obse

Orlov [11]

Answer:

Lmol⁻¹s⁻¹

Explanation:

The rate law of the given reaction is:-

Rate=k[A][B]

Wherem, k is the rate constant.

Given that:-

Rate = 0.36 mol/Lsec = 0.36 M/sec

[A] = 3.0 M

[B] = 1.0 M

Thus,

Applying in the equation as:-

0.36 M/sec =k × 3.0 M× 1.0 M

k = 0.12 (Ms)⁻¹ = 0.12 Lmol⁻¹s⁻¹

<u>The units of k = Lmol⁻¹s⁻¹</u>

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3 years ago