2 years ago

química: compara y contrasta la investigación básica, investigación aplicada y el desarrollo tecnológico. razonamiento crítico.

Chemistry

1 answer:

mihalych1998 [28]2 years ago

7 0

This isn’t anything related to chemistry dude

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The decomposition of hydrogen peroxide follows first order kinetics and has a rate constant of 2.54 x 10-4 s-1 at a certain temp

Eva8 [605]

Answer:

$[A]_0=0.400M$

Explanation:

Hello.

In this case, since the first-order reaction is said to be linearly related to the rate of reaction:

$r=-k[A]$

Whereas [A] is the concentration of hydrogen peroxide, when writing it as a differential equation we have:

$\frac{d[A]}{dt} =-k[A]$

Which integrated is:

$ln(\frac{[A]}{[A]_0} )=-kt$

And we can calculate the initial concentration of the hydrogen peroxide as follows:

$[A]_0=\frac{[A]}{exp(-kt)}$

Thus, for the given data, we obtain:

$[A]_0=\frac{0.321M}{exp(-2.54x10^{-4}s^{-1}*855s)}$

$[A]_0=0.400M$

Best regards!

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3 years ago

An element has a half-life of 30 years. if 1.0 mg of this element decays over a period of 90 years, how many mg of this element

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144.6

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How many minutes are in 9,040 ms

aivan3 [116]

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0.15066667

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3 years ago

If the pressure on a gas is decreased by one-half, how large will the volume change be?

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It will double in size

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3 years ago

Please help fast, I will give brainliest.

Serga [27]

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Explanation:

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2 years ago

Read 2 more answers

química: compara y contrasta la investigación básica, investigación aplicada y el desarrollo tecnológico. razonamiento crítico.​

química: compara y contrasta la investigación básica, investigación aplicada y el desarrollo tecnológico. razonamiento crítico.