Chemistry, 10.10.2019 15:50 ShugarLove4363
On average, one chlorine atom can destroy 100,000 ozone molecules. such destructive power is tremendous when it is related to the millions of tons of cfcs that had been produced up until that time. when rowland and molina calculated the likely effect on the ozone layer, they could not believe their figures. they consulted another scientist hal johnson who confirmed their results. in 1974, rowland and molina published their predictions about ozone depletion in the scientific journal nature. although the united states was quick to ban the production of cfcs, many other countries including britain, china, france and japan did not. look at the ozone depletion images from 1979-1994. these images show the amounts of ozone in the atmosphere above antarctica in october. the colors indicate the relative amounts of ozone present. the “red” color indicates the highest amounts and the “purple” indicates the smallest amounts. in 1994, the “ozone hole” showed to have a loss of 65% of its original ozone amounts. using the images collected on the site, describe the trends you see over time in the strength of the ozone coverage.
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Chemistry, 22.06.2019 12:30
A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml
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Chemistry, 22.06.2019 22:00
8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these
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Chemistry, 22.06.2019 22:30
Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.
Answers: 1
On average, one chlorine atom can destroy 100,000 ozone molecules. such destructive power is tremend...
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