Ozone is depleted in the stratosphere by chlorine from CFCI according to this set of equations: CFCI + UV light – CF; + Cl Cl + 0, CIO + O2 O3 + UV light – 0z +0 CIO +0 Cl + 02 What total volume of ozone at a pressure of 25.0 mmHg and a temperature of 225 K is destroyed when all of the chlorine from 15.0 g of CF, Cl goes through 10 cycles of the given reactions?

How many milliters of O2 would be produced at 18.2ºC and 749.4 mmHg by the reaction of 1.398 g of Na2O2 with an excess of CO2 present?

What is the rms speed of He atoms at 485 K ? ( in m/s)

How do chemists know that none of the individual Lewis structures of ozone are not accurate depictions of an ozone molecule, and how is this discrepancy addressed?

If there are 1.5 x 109 cows each "passing" on the average 240. Liters of CH4 (g) per day, in one day if all of that CH4 were to be safely collected and undergo a controlled but complete combustion reaction, how many grams of CO2 would contribute to the Greenhouse effect of the Earth?   You will first need to have the combustion reaction of CH4. Make an assumption that the Temperature of the collected gas is 22.4 L = 1 mol, STP conditions (which it really is not at).

Discuss the activity of ozone as a greenhouse gas. Write down the chemical reactions of ozone depletion.

Photosynthesis by land plants leads to the fixation each year of about 1 kg of carbon on the average for each square meter of an actively growing forest. The atmosphere contains 0.0390% CO, by volume. 2 What volume in (m³)of air (25°C, 1 bar) is needed to provide this 1 kg of carbon? 5

Ozone molecules in the stratosphere absorb much of the harmful radiation from the sun. How many ozone molecules are present in 4.00 L of air under the stratospheric ozone conditions of 249 K temperature and 1.67 × 10−3 atm pressure?

The temperature and pressure of ozone in the stratosphere are 250 K and 0.001 atm, respectively. How many ozone molecules are present in 1.0 L of air under these conditions?

Suppose 125 g of NO3- flows into a swamp each day. What volume of N2 would be produced each day at 17.0°C and 1.00 atm if the denitrification process were complete?