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pashok25 [27]
2 years ago
5

In the chemical reaction:

Chemistry
1 answer:
tiny-mole [99]2 years ago
6 0

Answer:

d

Explanation:

d

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Answer: a)  The concentration after 8.8min is 0.17 M

b) Time taken for the concentration of cyclopropane to decrease from 0.25M to 0.15M is 687 seconds.

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant

a - x = amount left after decay process  

a) concentration after 8.8 min:

8.8\times 60s=\frac{2.303}{6.7\times 10^{-4}s^{-1}}\log\frac{0.25}{a-x}

\log\frac{0.25}{a-x}=0.15

\frac{0.25}{a-x}=1.41

(a-x)=0.17M

b) for concentration to decrease from 0.25M to 0.15M

t=\frac{2.303}{6.7\times 10^{-4}s^{-1}}\log\frac{0.25}{0.15}\\\\t=\frac{2.303}{6.7\times 10^{-4}s^{-1}}\times 0.20

t=687s

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What are alleles A the decoders of the dna message B two forms of single genes c the basic unit inheritance d a measurable
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Calculate the volume of 38.0 g of carbon dioxide at STP. Enter your answer in the box provided. L
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Answer:

19.3 L

Explanation:

V= n × 22.4

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First, to find the moles of CO2, divide 38.0 by the molecular weight of CO2 which is 44.01

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Answer:

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Answer:

Atmospheric nitrogen is not heavier than chemical nitrogen, largely because “chemical nitrogen” is ultimately derived from atmospheric nitrogen. On the other hand, you could be asking why the atomic mass of nitrogen is not the same as the mass of nitrogen gas; that's because gaseous nitrogen is diatomic, .

Explanation:

This is from Google.

Hope this helps :))

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3 years ago
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