How much heat evolved-absorbed if limestone decomposes
Limestone, CaCo3, when subjected to a temperature of 900 degrees Celsius in a kiln, decomposes to calcium oxide and carbon dioxide. How much heat is evolved or absorbed when one gram of limestone decomposes?
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The molar heat of fusion of benzene is 9.92 kJ/mol. Its molar heat of vaporization is 30.7 kJ/mol. Calculate the heat required to vaporize 7.71 g of benzene at its normal boiling point
he West Division of Shekarchi Corporation had average operating assets of $639,000 and net operating income of $103,000 in March.
The area of a rectangle is 991cm square. If 991 is a prime number, what are the whole number dimensions of the rectangle?
Determine whether Rachel's basket weaving shop should carry the basic introductory kit with undyed and uncut reeds o2 the Stage 2 kit with reeds already dyed and cut. Prepare an incremental analysis to support your answer.
Limestone, CaCo3, when subjected to a temperature of 900 degrees Celsius in a kiln, decomposes to calcium oxide and carbon dioxide.
A 25.0 g piece of aluminum at 4.0 degrees is dropped into a beaker of water. The temperature of water drops from 75 to 55 degrees. What amount of heat did the aluminum absorb? The specific heat of Al is 0.902 J/g x c
At equilibrium, [A] = 0.420 M and [C] = 0.580 M. Calculate the value of the equilibrium constant, Kc.
Calculate the work w when 0.7 litre of an ideal gas at an initial pressure of 4.2 atm is expanded or compressed isothermally to a final volume of 4.2 litres into a vacuum. Give your answers in J.
A student removes the thermometer and stirring wire in part b of the experiment to add the naphthalene, and wipes them off, losing .50 mL of cyclohexane. What percent error will this introduce if the original 5.00mL is used in the calcuations?
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Consider the freckles pedigree above. Circles are women, squares are men. Dark indicates that person has no freckles, open (white) indicates
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