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You designed a camping stove that uses liquid propane as fuel and is so efficient that combustion takes place at 120 oC (temperature of the exhaust gas). How much useful heat will this stove produce per 100 g of liquid propane in winter conditions when temperature of the fuel and air are -30 oC? You can assume that air contains pure oxygen and that heat capacities are independent of temperature. C3H8 (g) + 5O2 --> 3CO2 + 4H2O Note: Vaporization of propane takes place at -30 oC.
the pressure of the vapor in this experment when the flask was full of vapor was assumed to be equal to the pressure of the atmosphere in the laboratory. why is this assumption valid
Codeine, C16H21NO3, is a monohydroxic derivative of morphine with pkb=6.05. Calculate the PH of a 80.0 ml soultion that contains 6.5 mg of codeine
Compare and contrast the accuracy and precision of at least three types of measurements used in your life
what are physical challenges of creating and moving one mole of a common household item from the eastern to the western
If 67.0 mL of 0.119 mol/L NaOH(aq) and 35.0 mL of 0.193 mol/L HA(aq) are mixed, then what is [HA] at equilibrium? Assume that HA is a weak monoprotic acid with pKa=6.23 at 25oC
Define why bubbling a solution with an inert gas such as argon or nitrogen causes deoxygenation of the solution
Depict and illustrate the difference in the three dimensional structure of Ethene and point out the difference between this and Ethane
Calculate the molecular mass of the nonionic solutes.
Sulfur dioxide is released in the combustion of coal. Scrubbers use aqueous slurries of calcium hydroxide to remove the SO2 from flue gases. Write a balanced equation for this reaction.
The machine can operate between a heat reservoir at 540K and 300K as well as the machine can convert heat of 1000J into work of 450J. Explain what is the entropy change of the machine
A helium-filled weather balloon has a volume of 815 L at 22 oC and 752 mmHg. It is released and rises to an altitude of 7.16 km, where the pressure is 364 mm Hg and the temperature is -25oC
awrite expressions for the equilibrium constants for the following reactionsnico4 g rarr ni s 4 co g2 hgo s rarr 2 hg
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