{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

SOS Practice problems

# SOS Practice problems - Practice problems 1 The first order...

This preview shows pages 1–3. Sign up to view the full content.

Practice problems 1. The first order reaction A products has a t ½ = 180 seconds. a. What percentage of the sample remains unreacted after 900 seconds? b. What is the rate of reaction when [A]=0.50M 2. In 3 different experiments the following results were obtained ; A products Write the rate equation for this reaction and indicate the value of K 3. Given the equilibrium constant values; N 2(g) + (1/2) 0 2(g)  N 2 O(g) Kc= 2.7x10 -18 N 2 O 4(g)  2NO 2 (g) Kc = 4.6x10 -3 (½)N 2(g) + O 2(g)  NO 2(g) Kc= 4.1X10 -9 Determine the value of K for the reaction ; 2 N 2 O (g) + 3 O 2(g)  2 N 2 O 4(g) 4. 1.00 x 10^-3 mol PCl 5 is introduced into a 250.0 ml flask and equilibrium is established at 284 degrees Celsius. The reaction is PCl 5(g)  PCL 3(g) + CL 2(g) The quantity of Cl 2(g) present at equilibrium isfound to be 9.65x10^-4 moles. What is the value of K for the dissociation reaction at 284 degrees Celsius. [A] o= 1.00M t 1/2 = 50 min [A] o = 2.00M t 1/2 = 25 min [A] o = 0.50M t 1/2 = 100 min

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
5.
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern