Question
Hydrogen fluoride is used in the manufacture of Freons (which destroy ozone in the stratosphere) and
in the production of aluminum metal. It is prepared by the reaction
CaF2
H2SO4 -» C2SO4 + 2HF
In one process, 5.75 kg of CaF2 is treated with an excess of H2SO4 and yields 2.85 kg of HF. Calculate
the percent yield of HF.
% yield

Image Transcription

Hydrogen fluoride is used in the manufacture of Freons (which destroy ozone in the stratosphere) and in the production of aluminum metal. It is prepared by the reaction CaF2 H2SO4 -» C2SO4 + 2HF In one process, 5.75 kg of CaF2 is treated with an excess of H2SO4 and yields 2.85 kg of HF. Calculate the percent yield of HF. % yield

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