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calculate (Triangle H degree R) for the following reaction: H2S(g) + (3/2)O2(g) ---> SO2(g) + H2O(g)
a sample of riboflavin has a molar absorptivity of 1.67 x 10^3 L(mol x cm). What is the concentration of a solution with an absorbance of 0.484? The pathlength is 1.00cm.
suppose the hydrate was heated too quickly and some of it was lost as it spattered out of the container . explain how this would effect .
How long will it take for a signal to travel that distance assuming that the speed of light in the cable is the same as in a vacuum?
iodized salt is a mix of NaCl and KI. if the content of 75 ppm what is the iodine content?
The concentration of SO42- (aq) in a sample of river water can be determined using a precipitation titration in which a salt of Ba+ (aq) is the standard solution and BaSO4 (s) is the precipitate formed. What is the concentration of SO42- (aq) in a..
Lakes that have been acidified by acid rain can be neutralized by liming, the addition of limestone (CaCO3 ). How much limestone in kilograms is required to completely neutralize a 3.8 x109 lake with a pH of 5.5.
If all the energy obtained from burning 1.29 pounds of propane (fuel value is 11.09 kcal/g) is used to heat 124.5 kg of water at an initial temperature of 21.5 °C, what is the final temperature
How much heat is released when 25mL of 0.10 M NaOH reacts with 50 mL of 0.10 M HCl?
AT high temperatures phosgene (COCl2) decomposes to gve carbon monoxide CO and Cl2. In a typical experiment , 0.631g of COCl2 is injected ito a flask of volume 472cc. When equilibrium is established, it is found that the total pressure is 2.175atm..
Assuming the mixture has the same specific heat (4.184J/goC) and density (1.00 g/cm3) as water, calculate the heat (in J) transferred to the surroundings, qsurr.
How much water would you add to 50.0mL of 0.400M NaOH if you wanted the final concentration to be 0.200M ?
Which of the following statements concerning nuclear fission is correct?
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