Use of freons is being phased out because of the damage these compounds do to the stratospheric ozone layer.?

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Use of freons is being phased out because of the damage these compounds do to the stratospheric ozone layer.?

One of the freons, CCl2F2, is manufactured by reacting carbon tetrachloride with hydrogen fluoride. The other reaction product is hydrogen chloride. What is the yield of this reaction, if a manufacturer obtains 160 kg of CCl2F2 from 280 kg of CCl4? (Enter the yield in percent.)

2007-09-12 17:59:13 · 1 answers · asked by danz2289 1 in Science & Mathematics ➔ Chemistry

1 answers

Determine moles of reactant and product, then divide to get yield: Be certian to put in correct units!

CCl4 153.8g/mol; CCl2F2 120.9g/mol

[160kg/0.1209kg/mol]/ [280kg/0.1538kg/mol] =

1323mol/1821mol x 100% = 72.7% yield

2007-09-12 18:27:44 · answer #1 · answered by Flying Dragon 7 · 0⤊ 0⤋