5I.5

[smurphy1D]

In this equation I am given the value of K and 2 partial pressure values. I need to solve to find the P for the last one. I am dividing and multiplying the other values around to solve for x but I keep getting the wrong answer. Am I forgetting a step?
Ppcl5= Ppcl3 + Pcl2
1.8 bar =(x) + 5.43 bar K=25 25=5.43(x)/1.8. 25 x 1.8/5.43=x

[Renee Grange 1I]

I think the reason you are getting the wrong answer is because you are using 1.8 bar instead of 1.18 bar, but your steps are correct.

[Ivan Tadeja 1G]

You did everything right, change 1.8 to 1.18 and you will get the correct outputs.

[Pegah Nasseri 1K]

For this problem you know that K=25 so using the chemical equation you know that:

Plug in the values of the partial pressures that have already been given to you:

Then isolate PPCl3 to find its partial pressure:

[smurphy1D]

I think the reason you are getting the wrong answer is because you are using 1.8 bar instead of 1.18 bar, but your steps are correct.

Yes, got it thank you!