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Assume that a particular reaction evolves 245kJ of heat and that 24kJ of work is gained by the system what is the delta H inside and the surroundings
Calculate the amount of energy present in the following photons and find the region of electromagnetic spectrum for each.
A 93-L sample of dry air cools from 145 degrees celicus to -22 degrees celicus while the pressure is maintained at 2.85 atm. What is the final volume?
The solubility of silver phosphate in pure water and Na3PO4, Silver Phosphate, Ag3PO4, is an ionic compound with a solubility product constant Ksp of 206 x 10 ^ - 18.
An antacid tablet containing calcium carbonate as an active ingredient required 26.8mL of .112 M HCL for complete neutralization. What mass of CaCO3 did the tablet contain?
The total pressure in the system is found to be 3.0 atm and the mole fraction is 0.12. Find K(pressure) Can someone explain all the steps to get to the answer?
the equilibrium contant kc=49 at 230^0C, for the reaction PCl3 + Cl2= PCL5. If 0.50mol of each of phosphorus trichloride and chlorine are added to a 5.0L reaction vessel.
if you take a 12.5 mL portion of the stock solution and dilute it to a total volume of 0.600L what will be the concentration of the final solution?
If the reaction of 2.50 g of aluminum with 2.50 g of oxygen produced 3.50 g of aluminum oxide, What is the % yield of the reaction?
Calculate the final temperature of 33 mL of ethanol initially at 13 degrees Celsius upon absorption of 657 J of heat. (density of ethanol =0.789 g/mL).
What is the density of lead (in ) if a rectangular bar measuring 0.50 in height, 1.55 in width, and 25.00 in length has a mass of 219.5 ?
Calculate the molarity of a solution made by dissolving 0.0715 mol Na2SO4 in enough water to form 550 mL of solution.
Compute the enthalpy change, for this reaction per mole of solution and A calorimeter has water of 22.0 grams at the temperature of fifteen degree celsisu
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