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3 marksUnfamiliar context3.1.6.2

Hydrogen and iodine react in a sealed flask:

\mathrm{H_2(g) + I_2(g) \rightleftharpoons 2HI(g)}

. At the temperature used,

K_c = 49.0

. The flask initially contains 1.00 mol of

\mathrm{H_2}

and 1.00 mol of

\mathrm{I_2}

Calculate the amount of HI at equilibrium.

[3 marks]

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