Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Step 1
Given chemical reaction,
N2O4 (g)⇌2 NO2 (g)
The equilibrium constant Kc = 170.
Mass of N2O4 = 13.9 g
Volume of the flask = 3.000 L
Molar mass of N2O4 = 92.011 g/mol
Number of moles of N2O4 =
mass of N2O4 /Molar mass of N2O4
Number of moles of N2O4 =
13.9 g/92.011 (g/mol)
Number of moles of N2O4 = 0.1511 mol
Molarity of N2O4 = number of moles of N2O4 / Volume
Molarity of N2O4 = 0.1511 mol/3.000 L
Molarity of N2O4 = 0.05037 M
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