At 65 C the half life for the first order decomposition of N2O5 is 2.38 min. N205 yields 2NO2(g) + 1/2 O2 (g). [1.30 g of N2O5 is introduced into an evacuated 14-L flask at 65 C]. a) What is the initial partial pressure in mmHg of N2O5? (I got this right and it is 18 mmHG). b) What is the partial pressure, in mmHg, of rm N2O5(g) after 2.38 min? c) What is the total gas pressure, in mmHg, after 2.38 min?

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