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The reaction and rate law for the gas-phase decomposition of dinitrogen pentaoxide are 2 N2O5(g) ---> 4 NO2(g) + O2(g), rate = k[N2O5]. Which of the following can be considered a valid mechanism(s) for the reaction?
Hemoglobin is the protein that transports O2 through the blood from the lungs to the rest of the body. In doing so, each molecule of hemoglobin combines with four molecules
A solution consists of 3.88 g benzene,C6H6 , and 2.45 g toluene ,C6H5CH3. The vapor pressure of pure benzene at 20. °C is 75 mm Hg and that of toluene at 20.0 °C is 22 mm Hg.
An iron bar of mass 885 g cools from 94°C to 5°C. Calculate the heat released (in kilojoules) by metal.
Estimate the heat released when ethene CH2 CH2 reacts with hydrogen gas to give CH3CH3.
A sample of ethanol (C2H5OH) has a mass of 45.0 g. How many carbon atoms does the sample contain?
Electrolytes and Molarity, Iii)salt is added to 81.4 g of water? iv) Identify the electrolytes and the non-electrolytes among the following compounds
What is the enthalpy of combustion of this fuel in kJ/mol? The specific heat capacity of water is 4.184 J/g-°C.
A chemist produces 460 mL of oxygen gas at - 43 °C and constant pressure. To what Celsius temperature must the oxygen be warmed in order for it to have a volume of 600 mL?
calculate the Al(III) concentration in the original unknown solution by correcting the dilution made when preparing the sample for analysis.Given: 10 mL unknown solution
what is the total volume occupied by the metal and the water in the graduated cylinder? 2.How could the density of a substance that was soluble in water, be determined?
The solid fuel in the booster stage of the space shuttle is a mixture of ammonium perchlorate and aluminum powder. On ignition, the reaction that takes place is 6 NH4ClO4(s) + 10 Al(s) ? 5 Al2O3(s) + 3 N2(g) + 6 HCl(g) + 9 H2O(g)
Determine the volume (in mL) of 0.00437 M cesium hydroxide (CsOH) that must be added to 81.4 mL of 0.0282 M hypochlorous acid (HClO) to yield a pH of 6.70.
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