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A chemical engineer studying the properties of fuels placed 1.467 g of a hydrocarbon in the bomb of a calorimeter and filled it with O2 gas (see the figure below). The bomb was immersed in 2.447 L of water and the reaction initiated. The water temperature rose from 21.70°C to 23.35°C. If the calorimeter (excluding the water) had a heat capacity of 403 J/K, what was the heat of combustion (qv) per gram of the fuel?
according to le chacircteliers principle a system at equilibrium will respond to a stress by shifting in the direction
Write a balanced nuclear equation for the following: The nuclide bismuth-214 undergoes alpha emission to give thallium-210.
What is the percentage by mass of CH4 in the mixture. The standard enthalpies of combustion for CH4 and C2H6 are -890.3 kJ mol-1 and -1569.7 kJ mol-1, respectively.
What are the concentrations of HSO4-, SO42-, and H+ in a 0.20 M KHSO4 solution? (Hint H2SO4 is a strong acid; Ka for HSO4- = 1.3x10-2)
Will the yeast cells or the corn seedling have a higher metabolic rate when compared on a mass specific basis (in moles ATP/gram organism x hr)?
What is the Cl ? concentration just as Ag2CrO4 begins to precipitate when 2.0 M AgNO3 is slowly added to a solution containing 0.048 M Cl ? and 0.048 M CrO42-
Camphor (C10H16O) is a natural compound found in the wood of camphor laurel, an evergreen native to southeast Asia. Borneol (C10H18O) and isoborneol (C10H18O) are similar to camphor
starting with an aqueous solution of 75ml of 0.35m naocl kb 2.8x10-7 determine the observed ph of the solution at the
a sample of oxygen that occupies 1.00X 10^6 ml at 575 mm hg is subjected to a pressure of 1.25 atm. what will the final volume of the sample be if the temperature is held constant?
Which of the following would be expected to have the lowest freezing temperature?
question when 15 ml of water at 21 c is combined with 11 ml of water at 63 c what is the final temperature of the
If a 1.00 cm^3 solid cube of alumina ceramic initially at 300 C is placed in 50 ml of H2O initially at 25C in a closed, insulated container: (a) what will be the final temperature of the system when thermal equilibrium is attained.
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