424 Report Sheer Rates of Chemical Reactions II: Rate and Order of H,0 B. Effect

Question

424 Report Sheer Rates of Chemical Reactions II: Rate and Order of H,0 B. Effect of Temperature BATH TEMPERATURE Buret read Vol. of O Decomposition ing (ml) (mL) Time 1420 12 42016123 Total volume of O, collected Barometric pressure Vapor pressure of water at bath temperature (see Appendix L) mL mm Hg mm Hg Slope Compared with the rate found for solution 1, the rate is Using the ideal gas law, calculate the moles of O collected show calculations) times faster mol O2 Based on the moles of 02 evolved, calculate the molar concentration of the original 3% H2O2 solution (show calculations).

Explanation / Answer

Total volume of O2=90

Barometric pressure=not possible to find pressure because quetion only has volume

rate is 2 times faster

PV=nRT

assume pressure=1 bar temperature=298 k R=0.0821

n=PV/RT=1*90*10^-3/0.0821*298=90^10-3/24.46=0.003

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