{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Assigned problems _3

# Assigned problems _3 - and C which react together to form...

This preview shows pages 1–2. Sign up to view the full content.

Chemistry 2080 Spring 2009 Problem Set #3 - due date: Friday February 19th at 2 pm Name:________________ Lab TA Name:__________________ Lab Day/Time:______________________ 1) A commercial process for making nitric acid starts with the platinum-catalyzed oxidation of ammonia (NH 3 ) by oxygen, to form nitric oxide (NO). The unbalanced chemical equation for this reaction is as follows: Pt NH 3 (g) + O 2 (g) –––––––> NO(g) + H 2 O(g) First balance this chemical equation, and then use the data of Table 7.2 in the Petrucci textbook to calculate the standard enthalpy change for the balanced equation.

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

View Full Document
2) Here is a set of data showing initial rates versus concentration for reactants A, B,
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: and C, which react together to form product D by way of the equation: A + 2B + C ––––––> D Run number: [A] [B] [C] Initial Rate of (M) (M) (M) consumption of [A] ____ in M/sec_____ 1) 0.10 0.20 0.050 2.6 x 10-3 2) 0.10 0.40 0.050 5.3 x 10-3 3) 0.20 0.10 0.050 5.2 x 10-3 4) 0.10 0.20 0.100 2.07 x 10-2 Find the rate law for the initial rate, namely the values of the exponents a, b and c in the rate law: Rate = k[A] a x [B] b x [C] c Calculate the value of the rate constant k, and then calculate what the inital rate would be if the initial concentrations were [A] =[B] = [C] = 0.20 M...
View Full Document

{[ snackBarMessage ]}