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Posted by **fiona** on Wednesday, December 12, 2012 at 2:37pm.

1.2 mol of hydrogen gas reacts with 1.0 mol of iodine vapour, after 5 minutes 0.6 mol of iodine remained.

A) calculate the number of moles of hydrogen that have not reacted after 5 minutes.

B) calculate the number of moles of hydrogen iodide that have been made after 5 minutes.

please help me

- chemistry -
**DrBob222**, Wednesday, December 12, 2012 at 3:01pm............H2 + I2 ==> 2HI

I...........1.2..1.0......0

C...........-x.....-x.....2x

E................0.6........

I2 reacted must be 1.0-x = 0.6 and solve for x.

Then E for H2 must be 1.2-x = ?

Then HI must be 2x.

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