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A sample of nitrosyl bromide (NOBr) decomposes according to the equation
2NOBr(g) ↔ 2NO(g) + Br2(g)
An equilibrium mixture in a 5.00-L vessel at 100? contains 3.22 g of NOBr, 3.08 g of NO, and 4.19 g of Br2.
(a) Calculate Kc.
(b) What is the total pressure exerted by the mixture of gases?
(c) What was the mass of the original sample of NOBr?
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