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A 2.56 g sample of anthracene, C14H10, was burned to heat an aluminum calorimeter (mass=948g). The calorimeter contained 1.5 L of water with an initial temp of 20.5 C and a final temperature of 34.3 C.
Calculate the molar heat of combustion of anthracene.
What would be the molarity of a nonelectrolyte in an aqueous solution if it exhibited an osmotic pressure of 14060torr at 220C
A 50.0-g sample of metal at 100.0 degrees C is added to 39.0 g water that is initially 23.50 degrees C. the final temperature of both the water and the metal is 28.46 degrees C.
sample of gas occupies 10.0-mL at 294.5 K and 1.10 atm. Upon further analysis, the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound?
How does the brightness of the light souece affect the outcome of the expirement using a certian frequency of light?
calculate how many moles of sodium phosphate are needed to react completely with 4.6 mol of calcium nitrate cano32 to
An experiment produces 15.0 grams of hydrogen for every 71.0 grams of oxygen used. How many grams of oxygen will you need to produce 6.0 g of hydrogen
The piston is then moved in and the heat rejected by the air reversibly at constant pressure until the volume is= initial volume. compute The net heat flow and the overall change in entropy?
What would happen to the solid benzoic acid product if it was washed with ice-cold aqueous 1M NaOH instead of ice-cold water?
Calculate the pH at the equivalence point when 40.0 mL of 0.100 M NH3 is titrated with 0.100 M HCl
How much ice (in grams) would have to melt to lower the temperature of 355 mL of water from 24 C to 6 C (Assume the density of water is 1.0g/ml.
at 700ordmc keq 0.0152 for the following reaction2so2g o2g ? 2so3gwhat is numerical value of the equilibrium constant
Therefore, a more systematic manner of indicating stereochemistry in these systems has been developed that uses the E and Z nomenclature system.
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