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Mandarinka [93]
4 years ago
12

Consider the following mechanism for the reaction between nitric oxide and ozone:

Chemistry
1 answer:
swat324 years ago
6 0

Answer:

A .  2 O₃(g) + 2 NO   ⇒  2 O₂ (g) + 2 NO₂(g)

B . Yes

C.   O and NO₃

Explanation:

A. The overall reaction is obtained by adding the individual steps in the reaction mechanism where we will get the reactants and product and the intermediates will cancel.

Thus, adding 1+ 2 +3 we get

2 O₃(g) + 2 NO   ⇒  2 O₂ (g) + 2 NO₂(g)

B. The reaction intermediates are those that are produced from the initial and/or subsequent steps and are consumed later on in the reaction mechanism, but  are neither reactants nor products, they just participate.

From this definition it follows that O(g) and NO₃ are reaction intermediates.

C. O and NO₃

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1. An isotope of radon has a half-life of 14 days. A child goes to visit Grandma in Northern Ontario. While playing in the basem
mylen [45]

<u>Given:</u>

Half life of radon t1/2 = 14 days

Initial # atoms of radon, N(0) = 4800

# atoms left after a certain time (Nt) = 75

<u>To determine:</u>

The decay time (t)

<u>Explanation:</u>

The radioactive decay is given by the following equation:-

N(t) = N(0)exp(-kt) -------(1)

where, the exponential decay constant k is given as:

k = 0.693/t1/2 ----(2)

Based on the given data:

k = 0.693/14 = 0.0495 day⁻¹

Substituting k in eq(1)

75 = 4800 exp(-0.0495t)

ln(75/4800) = (-0.0495t)lne

t = 84 days

1 week = 7 days

therefore, 84 days corresponds to: 84 days * 1 week/7 days = 12 weeks

Ans: It will take 12 weeks for the decay of radon from 4800 to 75 atoms


4 0
3 years ago
In a flexible container , 15.9 L of gas is under 589 kPa of pressure at a temperature of 56.5 degrees * C . If the pressure and
amm1812

76.6 litres is the volume of the gas if pressure and temperature changes to STP.

Explanation:

Data given:

Volume of the gas V1 = 15.9 litres

pressure of the gas P1 = 589 kPa or 5.81 atm.

temperature T1 = 56.5 degrees or 329.3 K

Final pressure P2 = 101.3 kPa

Final temperature T2 = 273 K

At STP the pressure is 1 atm or 101.3 kPa and the temperature is 273 K. So from the question the final temperature and pressure is at STP.

from Gas Law:

\frac{P1V1}{T1}  =  \frac{P2V2}{T2}

V2 = \frac{P1V1T2}{P2T1}

Putting the values in  the above rearranged equation of Gas Law:

V2 = \frac{589 X 15.9 X 273}{329.3X 101.3}

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What is the volume of pure sulfur if its mass is a 130 g and the density is 2.07 g/mL
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The volume of pure sulfur would be 62.8
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In guinea pigs, black fur is the dominant trait. If a white guinea pig mates with a guinea pig that is heterozygous for its blac
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The answer is C, since the black pig is heterozygous, it makes the majority black due to its dominant trait, but about 1 in 5 will be white
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3 years ago
Differentiable surface waves from body waves?
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By studying the trajectories of S-waves, scientists could prove that the Earth had a liquid outer core.


hope that helps

4 0
3 years ago
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