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What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 ml of solution having a density of 1.25 g/ml by 1.60°C? (The specific heat of the solution is 3.74 joules/gramK.)
Calculate the entropy change associated with the isothermal expansion of 5.40 mol of ideal gas atoms
A 550 mL volume of hydrogen chloride gas, HCl, is collcted at 27 degrees C and 790 mm Hg. What volume will it occupy at STP?
what are the steps to calculate the followingnbspnbsphow many grams of barium sulfate are produced if 25.34 ml of 0.113
A tripeptide made from the amino acids alanine, phenylalanine, and threonine is shown in this Jmol molecule. If the convention for naming peptides
How many days would be required for a dose of Cu-64 to decay to 1.0% of its original concentration?
What is the maximum mass of aluminum chloride that can be formed when reacting 14.0g of aluminum
Calculate [CO32- ] in a 0.025 M solution of CO2 in water (H2CO3). If all the CO32- in this solution comes from the reaction shown below, what percentage of the H+ ions in the solution is a result of the dissociation of HCO3‾?
An ideal gas originally at .85 atm and 64 degrees C was allowed to expand until its final volume, pressure, and temperature were 94 mL, .60 atm, and 41 degrees C respecitively. What was its initial volume
At a certain temperature, the equilibrium mixture of the reaction PCl5 (g) ? PCl3 + Cl2 (g) has PCl5 = 1.50 atm. PCl3 = 0.10 atm and PCl2 = 7.50 atm Calculate the value of Kp at this temperature
This strontium isotope is radioactive, with a half-life of 28.1 yr. Calculate how long it will take for 0.860 g of the isotope to be reduced to 0.170 g by decay
what is delta Urxn for the combustion X; the hardware compnent of the calorimeter has a heat capcity of 3.63kj/*c. the specific heat of water is 4.184j/g*c the MW of X is 56.0 g/mol
Why was the titration performed by the addition of permanganate solution to oxalate solution and not the other way around? Why was the experiment performed at an elevated temperature?
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