In the reaction #H_2(g) + F_2(g) ->2HF(g)#, how many grams of #HF# gas are produced as 5 mol of fluorine react with excess #H_2#?

1 Answer
Mc'Coob
Feb 16, 2016

100

Explanation:

Normally 1 mole of #F_2# reacts with 1 mole of #H_2# giving 2 moles of HF (which is 20g).

We can say that 1 mole of #F_2# gives 20 g of #HF#.
The questions is: 5 moles of #F_2# give x (how much #HF#?)

#1 - 20#
#5 - x#
#x = 100 g#

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