# Problem: Hydrogen fluoride is used in the manufacture of Freon (which also destroys ozone in the stratosphere) and in the production of aluminum metal. It is prepared by the reaction CaF2 + H2SO4      →      CaSO 4 + 2HF  In one process, 6.00 kg of CaF 2 are treated with an excess of H 2SO4 and yield 2.86 kg of HF. Calculate the percent yield of HF. a) 76.3% b) 83.6% c) 89.2% d) 93.0% e) 97.8%

###### FREE Expert Solution
94% (493 ratings)
###### Problem Details

Hydrogen fluoride is used in the manufacture of Freon (which also destroys ozone in the stratosphere) and in the production of aluminum metal. It is prepared by the reaction

CaF2 + H2SO4      →      CaSO 4 + 2HF

In one process, 6.00 kg of CaF 2 are treated with an excess of H 2SO4 and yield 2.86 kg of HF. Calculate the percent yield of HF.

a) 76.3%

b) 83.6%

c) 89.2%

d) 93.0%

e) 97.8%

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Percent Yield concept. You can view video lessons to learn Percent Yield. Or if you need more Percent Yield practice, you can also practice Percent Yield practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofHydrogen fluoride is used in the manufacture of Freon (which...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Jules took 4 minutes and 29 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Randles' class at UCF.