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11 Nov 2019
Question 1. The U.S. Environmental Protection Agency is phasing out the use of the refrigerant R-22 by 2020 because it damages the ozone layer that protects Earth from parts of the solar spectrum that damage living tissues. Most air conditioners built in the past 10 years use a different refrigerant, called R-410A. a) Draw the structural formula for R-22, whose chemical name is chlorodifluoromethane. b) R-410A is a mixture of difluoromethane (called R-32) and pentafluoroethane (called R-125). Draw the structural formulas for R-32 and R-125.
Question 1. The U.S. Environmental Protection Agency is phasing out the use of the refrigerant R-22 by 2020 because it damages the ozone layer that protects Earth from parts of the solar spectrum that damage living tissues. Most air conditioners built in the past 10 years use a different refrigerant, called R-410A. a) Draw the structural formula for R-22, whose chemical name is chlorodifluoromethane. b) R-410A is a mixture of difluoromethane (called R-32) and pentafluoroethane (called R-125). Draw the structural formulas for R-32 and R-125.
Reid WolffLv2
25 Mar 2019