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A 1.3 g sample of C3H6O is burned completely in excess oxygen to yield CO2 (g) and H2O (l) at 25 C, releasing 41.4 kJ of energy. What is the enthalpy of formation of C3H6O?
Determine the molarity of Fe+3 ions and SO4-2 ions in a solution prepared by dissolving 48.05g of Fe2(SO4)3 in enough water to make 800.0mL of solution.
The mass of a cube of iron is 439 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
Can someone please show me a mechanism for a Diels-Alder Green Organic Phototchemistry reaction mechanism? We used 9-(hydroxymethyl) anthracene, deionized water, and N-methylmaleimide as the reagents and allowed to solution to reflux.
A sample of commercial sulfiruc acid is 96.4% H2SO4 by mass, and its density is 1.84 g/ml. Calculate the molarity of the sulfuric acid solution.
When 24.0 g of glucose (a nonelectrolyte) are dissolved in 500. g of water, the solution has a freezing point of -0.47°C. What is the molar mass of glucose? Kf of water is 1.86°C/m.
A suitable storage place must be geologically stable long enough for the activity of plutonium-239 to decrease to 0.1% of its original value.
when 0.198 g of KHP is tritated with NaOH it requires 27.80 mL of NaOH to reach the endpoint of the reaction. Calculate the molarity of the NaOH solution.
Calculate the heat evolved when 75.0 mL of a 2.00M HCl solution reacts with 37.5 mL of a 4.00M NaOH solution if the temperature rises from 20.0 degree C to 37.9 degree
A 29.0-g sample of water at 260. K is mixed with 48.0 g water at 300. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Sufficient sodium cyanide, NaCN, was added to 0.015 M silver nitrate, AgNO3, to give a solution that was initially 0.100 M in cyanide ion, CN-. What is the concentration of silver ion,
At what concentration does hydrocyanic acid (ka= 4.9 x 10^-10) exhibit 0.05 percent ionization? Assume the temperature to be 25*C
If 2.5 mol of ethylene oxide is decomposed at 93 degrees celcius what will be the final temperature of the products? The heat capacity of the products is 110.13J/mol C?
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