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Alexxandr [17]
3 years ago
6

What is one danger associated with blizzards

Chemistry
1 answer:
notka56 [123]3 years ago
4 0
One danger associated with blizzards is that blizzards are severe winter storms that pack a combination of blowing snow and wind resulting in very low visibilities. While heavy snowfalls and severe cold often accompany blizzards, they are not required. Sometimes strong winds pick up snow that has already fallen, creating a blizzard.

I hope this helps.
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Be sure to answer all parts. Acetone is one of the most important solvents in organic chemistry. It is used to dissolve everythi
zimovet [89]

Answer:

a) 79.66 seconds is the half-life of the reaction.

b) It will take 4.776\times 10^1 seconds for 34% of a sample of an acetone to decompose.

c) It will take 2.537\times 10^2 seconds for 89% of a sample of an acetone to decompose.

Explanation:

The decomposition of acetone follows first order kinetics

The rate constant of the reaction = k = 8.7\times 10^{-3} s^{-1}

a)

Half life of the reaction = t_{1/2}

For the first order kinetic half life is related to k by :

t_{1/2}=\frac{0.693}{k}

t_{1/2}=\frac{0.693}{8.7\times 10^{-3} s^{-1}}=79.66 s=7.966\times 10^1 s

79.66 seconds is the half-life of the reaction.

b)

Let the initial concentration of acetone be = [A_o]

Final concentration of acetone left after t time = [A]

A=(100\%-34\%)[A_o]=66\%[A_o]=0.66[A_o]

For the first order kinetic :

[A]=[A_o]\times e^{-kt}

0.66[A_o]=[A_o]\times e^{-8.7\times 10^{-3} s^{-1}\times t}

Solving for t;

t=47.76 s

It will take 47.76 seconds for 34% of a sample of an acetone to decompose.

c)

Let the initial concentration of acetone be = [A_o]

Final concentration of acetone left after t time = [A]

A=(100\%-89\%)[A-o]=11\%[A_o]=0.11[A_o]

For the first order kinetic :

[A]=[A_o]\times e^{-kt}

0.11[A_o]=[A_o]\times e^{-8.7\times 10^{-3} s^{-1}\times t}

Solving for t;

t=2.537\times 10^2 s

It will take 2.537\times 10^2 seconds for 89% of a sample of an acetone to decompose.

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