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1. A sample of propane(C3H8) is placed in a closed vessel together with an amount of O2 that is 2.50 times the amount needed to completely oxidize the propane of CO2 and H2O at constant temperature. Calculate the mole fraction of each component in resulting mixture after oxidation assuming that H2O is present as a gas.
2. A hiker caught in a thunderstorm loses heat when her clothing becomes wet. She is packing emergency rations which if completely metabolized will release 30 kJ of heat per gram of rations consumed. How much rations must the hiker consume to avoid a reduction in body temperature of 4K as a result of heat loss? Assume the heat capacity of the body equals that of water and that the hiker weighs 55kg.
consider a certain type of nucleus that has a rate constant of 2.62 10-2 min-1. calculate the time required for the
What is the boiling point of cyclohexane at 680mmhg b.p. correction =(760mmHg-atmospheric pressure) X (0.037 0C) B.p of Cyclohexane at 1 atmosphere is 81.4 oC
If the temperature probe in an experiment is not calibrated and the values are 3.5 degrees C higher than they should be, what effect will that have on the delta T values when the initial value is measured with the thermometer and the latter is mea..
How will you find the equilibrium contant between the reaction of the strong acid and base? Help please
What is the total volume of gases produced at 819K and 1atm pressure when 256 g of ammonium nitrate (NH4NO2) undergoes the following decomposition?
A cylinder with a moveable piston contains 184mL of nitrogen gas at a pressure of 1.02atm and a temperature of 306 K. What must the final volume be for the pressure of the gas to be 1.52m atm at a temperature of 370 K
Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition
Trichloroacetic acid (CCl3CO2H) is a corrosive acid that is used to precipitate proteins. The pH of a 0.050 M solution of trichloroacetic acid is the same as the pH
the half life of polonium-210 is 138.4 days. how many milligrams of polonium-210 remain after 415.2 days if you start
A solid object is made of two materials, one material having density of 2.4 g /cm3 and the other having density of 8.6 g/cm3. If the object contains un-equal masses of the materials (75/25), what is its average density
The initial pH of chloroacetic acid is 1.90, (which I found from using the quadratic equation to find x in a RICE table because I was given the initial concentration of 0.124M and told to find the pH of a 10.0 mL solution.)
What is Kp for the reaction at this temperature? B. For the reaction N2(g)+ 3H2(g) 2NH3(g) Kp = 2.20×10?3 at 268 C . What is K for the reaction at this temperature?
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