At a particular temperature, K = 1.00×102 for the reaction:   H2(g) + F2(g) =2HF(g) In an experiment, at this temperature, 1.70 mol of H2 and 1.70 mol of F2 are introduced into a 1.12-L flask and allowed to react. At equilibrium, all species remain in the gas phase. What is the equilibrium concentration (in mol/L) of H2? the answer to this is 2.53×10-1 mol/L 1b) What is the equilibrium concentration (in mol/L) of HF? The answer to this is 2.53 mol/L 1c) To the mixture above, an additional 4.93×10-1 mol of H2 is added. What is the new equilbrium concentration (in mol/L) of HF?

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hello, i quickly need help with part C, i did part a and b

1a) At a particular temperature, K = 1.00×102 for the reaction:

 

H2(g) + F2(g) =2HF(g)

In an experiment, at this temperature, 1.70 mol of H2 and 1.70 mol of F2 are introduced into a 1.12-L flask and allowed to react. At equilibrium, all species remain in the gas phase.

What is the equilibrium concentration (in mol/L) of H2? the answer to this is 2.53×10-1 mol/L

1b) What is the equilibrium concentration (in mol/L) of HF? The answer to this is 2.53 mol/L

1c) To the mixture above, an additional 4.93×10-1 mol of H2 is added.
What is the new equilbrium concentration (in mol/L) of HF? 

 

please quickly help me with part c

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