What volume of O2 will form in 36.8 seconds at a barometric pressure of 782.2mmHg . (The v

timer Asked: Feb 21st, 2015

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I need help with a Chemistry question. All explanations and answers will be used to help me learn.

The reaction 2H2O2(aq)2H2O(l)+O2(g) is first order in H2O2 and under certain conditions has a rate constant of 0.00752 s−1 at 20.0 C. A reaction vessel initially contains 150.0 mL of 30.0% H2O2 by mass solution (the density of the solution is 1.11 g/mL). The gaseous oxygen is collected over water at 20.0 C as it forms.What volume of O2 will form in 36.8 seconds at a barometric pressure of 782.2mmHg . (The vapor pressure of water at this temperature is 17.5 mmHg)

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