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After 67.0 min, 17.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics?
A piston has an external pressure of 11.0 bar . How much work has been done if the cylinder goes from a volume of 0.150 liters to 0.570 liters.
A 1.994 g sample of ethanol is combusted in a bomb calorimeter. The temperature of the calorimeter increases by 10.91 K. If the heat capacity of the bomb is 615.5 J/K and it contains 1.150 kg of water, what is the enthalpy change per mole of ethan..
One brand of laundry bleach is an aqueous solution containing 4.00% sodium hypochlorite by mass.What is the molarity of this solution.
Calculate the pH of this buffer solution after the addition of 0.010 moles of solid sodium hydroxide to the buffer
An unknown is believed to be an alcohol because the IR spectrum showed broad absorption at 3200-3500 cm-1 and no absorption in the 1700-1750 cm-1 region.
If a 1.00 L flask is set up with an initial concentration of 0.391 mol/L COCl2, calculate the equilibrium concentration of carbon monoxide in mol/L.
how much heat is required to raise the temperature of 789 g of acetic acid from 25 degrees celsius to 82.7 degrees celsius? Specific heat = 2.05 J/gdegreeCelsius
A piece of metal of mass 27 g at 105?C is placed in a calorimeter containing 49.2 g of water at 19?C. The ?nal temperature of the mixture is 30?C. What is the speci?c heat capacity of the metal.
Calculate the molar solubility of stronium fluoride (SrF2) when dissolved in a 0.0800 M solution of stronium nitrate
Calculate the magnitude of the current in amperes if the number of moles of hydrogen gas produced is 4.80×10-4 moles.
Consider the mechanism of reduction of WO3. At least two mechamisms are possible to the formation of HxWO3 during intercalation of WO3
On a TLC plate if two compounds have Rf values of .50 and .61, how far will they be separated from each other on a plate
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