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A 100.0-g sample of copper is heated from 10.0 degrees Celsius to 100.0 degrees Celsius.
Determine the number of calories needed. (The specific heat of copper is 0.0921 cal/g degrees Celsius.)
The same amount of heat is added to 100.0 g of Al at 10.0 degrees Celsius. (The specific heat of Al is 0.215 cal/g degrees Celsius. Which metal gets hotter, the copper or the aluminum?
Calculate the energy per mL if the energy per gram for Methanol (MW = 32g) is 0.83 kcal/gram and for Ethane MW
Draw a phase Diagram (label axes), showing normal boiling boint, critical temperature (b) define critical temperature
solid aluminum reacts according to the balanced equation. if a total of 830 kj of heat is produced in the reaction as
Which of these ions best represents the conjugate acid in a "phosphate" buffer at physiological pH? Explain. H2PO4^-, HPO4^2-, PO4^3-
The coal that is burned is a form of pure carbon. (Diamonds and graphite are other forms of pure carbon). A sample of coal is completely burned in a 10.0 L cylinder at a constant pressure of 1.10 atm and a temperature of 1000 oC.
A certain carbon-hydrogen compound contains 84.1% C by mass and the remainder is hydrogen. What is the empirical formula of the compound
A sealed container holding 0.0255L of an ideal gas at 0.983 atm and 71C is placed into a refrigerator and cooled to 37C with no change in volume
Calculate the molarity of a solution of glycerol made by dissolving 63.000 glycerol at 15 in enough water to make 300.00 of solution.
Calculate the solubility (in M units) of ammonia gas in water at 298 K and a partial pressure of 9.00 bar . The Henrys law constant for ammonia gas at 298 K is 58.0 M/atm
ultramarine ultramarine is a deep blue color and a pigment which was originally made by grinding lapis lazuli into a
To what volume must a solution of 84.1 g H2SO4 in 534.7 mL of solution be diluted to give a 0.41 M solution
A fuel analyzes 74.0 wt % C and 12.0% ash (inert). Air is added to burn the fuel, producing a flue gas of 12.4% CO2, 1.2% CO, 5.7% O2, and 80.7% N2. Calculate the kg of fuel used for 100 kg mol of outlet flue gas and the kg mol of air used.
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