Based on your knowledge of chemistry, describe the research into depletion of the ozone layer by CFCs in a timeline.

Q: Prepare a short note of the following environmental incidents: (a) the Great Smog of London. (b) the…

A: An Environmental Incident can be defined as an event that may cause harm to an environmental…

Q: FInd out after how much time will only 2% chlorine remain in the water sample if its half-life is 6…

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Q: Average ozone concentrations in Jakarta, Indonesia have been reported to be 0.015mg m3 and in Tokyo,…

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Q: Photochemical smog is also known as

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Q: What is the role of carbon dioxide in air in Fresco Painting? What type of catalytic mechanism…

A: Fresco painting involves the process of forming carbonate that refers to the process of carbon…

Q: A gas, AB, decomposes and the volume of B2 produced is measured as a function of time. The data…

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Q: Use the Springall Roberts rules to predict the products of an explosion of NDPA, C12H10N2O2

A: The Springall Roberts rule is stated as, 1. Carbon atoms are converted to carbon monooxide. 2.…

Q: What are the reactions involved for ozone layer depletion in the atmosphere?

A: Formation of ozone is shown below,

Q: Explain the relation between air pollution and environmental chemistry.

A: Air pollution and environment chemistry is directly proportional to each other.

Q: If atmospheric C02 is causing temperatures to rise, what is the lag time?

A: Given :  If atmospheric C02 is causing temperatures to rise, what is the lag time?

Q: What is the composition of photochemical smog?

A: The photochemical smog that encompasses nitrogen oxides and hydrocarbons forms the brownish haze.…

Q: The ozone concentration at a monitoring site is measured as 0,11 ppm, at 25 °C and 1 atm. What is…

A: ppm: parts per million: Very dilute concentrations of substances can be expressed in ppm unit. One…

Q: Which of the following is not true? 1. When conditions are NOX-limited, the excess of VOCs in the…

A: We have asked to find out which statement is not true among the given four statements. The answer to…

Q: List two types of chemical compounds that must be present in the air for photochemical smog to form.…

A: The chemical reactions that lead to the formation of smog are:

Q: There is an "8 hour average" and "1 hour average" in the US EPA's 6 criteria air pollutants. What is…

A: Given, In the US EPA 6 criteria air pollutants the average time"8 hour average " and  "1 hour…

Q: Explain the role of ozone gas in troposphere and stratosphere. What do you understand by ozone layer…

A: The atmosphere is composed of different layers like the troposphere, stratosphere, mesosphere,…

Q: Between 2016 and 2018 Kern, California had the following high day air pollution averages. Ozone (8…

A: Carbon monoxide (CO) is an odorless, tasteless, and colorless gas that is marginally less dense than…

Q: chemical

A: When ignited , hydrogen gas combines with oxygen gas explosively. The gaseous reaction is: 2 H2(g) +…

Q: Select from the following which steps are involved in the natural production of ozone in the…

A: In the stratosphere, the concentration of ozone is the maximum. The ozone gas is produced naturally…

Q: Asphalt is composed of a mixture of organic chemicals. Does an asphalt parking lot contribute…

A: The chemical reactions that lead to the formation of smog are: Nitrogen dioxide breaks down in…

Q: Suppose you have an 8-hour ozone value of 0.088 ppm, and a PM2.5 value of 35.7 ug/m3. The AQI value…

A: AQI stands for Air Quality Index which serves as a means to measure the extent of Air Pollution.

Q: What effect could a volcanic eruption have on the ozone layer? Use your knowledge of atmospheric…

A: The layer which is made up of ozone molecules that protects Earth from almost all the sun's harmful…

Q: Photochemical smog occurs in a warm, dry, and sunny climate. One of the following is not among the…

A: Photochemical smog is produced mainly due to the action of ultraviolet rays on various types of…

Q: The substances, HCI , CION02 and HOCI are: Select one: 1 a. Ozone producers b. Ozone depleting…

A: 1) c. chlorine reservoir. 2) d. chitin 3) c. chitin 4) b. flipping soap 5) c. it decreases DO 6) b.…

Q: Why are CHF2Cl and CH2ClCF3 important for stratospheric ozone depletion? pls consider its lifetime.

A: Life time of CHF2Cl and CH2ClCF3 are 11.9 and 13.4 years respectively.

Q: There were 2250 tons of ammonium nitrate involved in the explosion in 1947. How many kg of oxygen…

A: The decomposition of ammonium nitrate releases oxygen gas, nitrogen gas , water and release high…

Q: How does the 1966 Fahrenheit 451 move portrayed censorship? Provide details and examples

A: Adaptation of the Ray Bradbury novel about future society that banned all books. Fahrenheit 451…

Q: Part a. Calculate the rate of change of CFC-12 (a chlorofluorocarbon gas) in the atmosphere between…

A: CFC-12 is a chlorofluorocarbon that is commonly referred to as Freeon-12. Its chemical name is…

Q: What chemical species in the atmosphere acts like nature’s cleaning agent? Give the symbol and name.

A: the hydroxyl radical which is extremely reactive and able to oxidise most of the chemicals found in…

Q: explain the cycle for the formation of ozone layer in the stratosphere. Inlcude pictures and the…

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Q: List two types of chemical compounds that must be present in the air for photochemical smog to form.…

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Q: Argon diffuses at a rate of 1.45 meters in 8.65 minutes. How long will it take helium to diffuse…

A: Rate of diffusion of Argon (Ar) = distance / time = 1.45 / 8.65 = 0.16763 m/min Since according to…

Q: Discuss the activity of ozone as a greenhouse gas. Write down the chemical reactions of ozone…

A: Ozone layer is a thin layer in the Earth's atmosphere that absorbs ultraviolet light coming from…

Q: > Why is analytical chemistry a powerful tool in environmental investigation?

A: The analytical chemistry  plays an important role in environmental  Investigation  by  providing…

Q: 15. If the concentration of ClO. in the South Pole air is 2.0 x 10° molecules/cm3 at 1 atm and…

A: The expression of ideal gas equation is shown below: PV = nRT Where; P = pressure V = volume n =…

Q: Select which of the following conditions are necessary for the process in the previous two questions…

A: Among the given options two options are mainly responsible for the ozone depletion over south…

Q: List two types of chemical compounds that must be present in the air for photochemical smog to from.…

A: Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile…

Q: Describe how the ozone layer forms and why it is important.

A: The ozone layer is present in the stratosphere layer of the atmosphere, ozone layer prevents the…

Q: 15. Order these gases by how quickly they would spread out in the air: CH4, NH3, CO, H20, Ne spreads…

A: Speed of gases depends  upon the density of gas less the density  of gas more will be the speed.

Q: Suppose you have an 8-hour ozone value of 0.088 ppm, and a PM2.5 value of 35.7 ug/m³. The AQI value…

A: From the given table we can clearly see that 8hr O3 value of 0.088 ppm lies in the unhealthy region…