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Using the following balance equation P4 (s) + 6F2 (g) ----> 4PF3 (g) What mass of F2...

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Chemistry

Using the following balance equation P4 (s) +6F2 (g) ----> 4PF3 (g)

What mass of F2 is needed to produce 120. g ofPF3 if the reaction has a 78.1% yield?

Answer & Explanation Solved by verified expert
3.8 Ratings (637 Votes)

4*87.96 IGRAMS OG PF3 IS -------------------------------100%

                 ?---------------------------------------------------------78.1%

                 = 78.1*4*87.96/100

               = 274.78 GRAMS

ACCORDING TO THE REACTIO AND THE GIVEN DATA

274.78 GRAMS OF PF3 GIVES BY -------------------------- 6*38 GRMAS OF F2

120 GRAMS OF F2 GIVES BY ---------------------------------------?

                     = 120*6*38/274.78

                       =99.50 GRAMS OF F2                
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