Question 5I 19

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ConnorRazmaDis2I
Posts: 55
Joined: Fri Sep 28, 2018 12:26 am

Question 5I 19

Postby ConnorRazmaDis2I » Sun Jan 13, 2019 9:17 pm

How do you calculate how many moles of I2 and HI are left over from the information given about 60% of H2 being used up in the reaction?

405021651
Posts: 46
Joined: Tue Nov 14, 2017 3:03 am

Re: Question 5I 19

Postby 405021651 » Sun Jan 13, 2019 9:59 pm

Is this question in the 7th edition of the book?

Elaine Pham 2E
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Re: Question 5I 19

Postby Elaine Pham 2E » Sun Jan 13, 2019 10:28 pm

For this question, the HI and I2 are not really left over but have equilibrium concentrations that you need to solve for in order to get K. To get their equilibrium concentrations, you set up an ICE table. The 60% of H2 used up refers to the change in H2, "x", which you can get by multiplying 0.6 to the initial molarity of H2. Knowing what "x" is and subtracting/adding "x" from the initial concentrations will allow you to complete the ICE table and find the final concentrations of HI and I2.


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