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A sample consisting of 2.0 mol CO2 occupies a fixed volume of 15.0L at 300K. When it is supplied with 2.35 kJ of energy as heat its temperature increases to 341K. Assuming the CO2 is an ideal gas, calculate work, delta U and delta H (Cp=44.22 J/Kmol).
How much energy would be required to melt 74 g of HCl at its melting point of -110.8 ? C? ?Hfus for HCl is 14.2 cal/g and ?Hvap for HCl is 98.7 cal/g. Answer in units of cal.
what volume of bleach (6%w/v=6g/100ml) would be required to oxidize 5.0 mL of methanol (density 0.890 g/ml) to methanone?
Fortunately, you can narrow the search because the PVC piping comes from unique vendors each with their unique degrees of polymerization. By detailed measurement, you determine that the PVC molecular non-extended (i.e., coiled) length is 7 nm. Wha..
The flask was then shaken until the solution was uniform. A 45.0- sample of this glucose solution was diluted to 0.500 . How many grams of glucose are in 100. of the final solution?
A standard l00-ppm quinine solution registered 125 when measured under conditions identical to those for the diluted sample. Calculate the mass in milligrams of quinine in the tablet.
What characteristic properties distinguish the transition elements from the Group IA and -IIA metals?
there is a difference between the average distance r between the electron and the nuckeus and the most probable distance between the electron and the nucleus. (a) derive the expression for the average distance r between the electron and the nucleu..
The Ksp of mag fluoride is 6.4x10 -9degree calculate the solubility (in g/l) of mag fluoride in water
How many liters of H_2 would be formed at 704 mm Hg and 14 degrees C if 21.5 g of zinc was allowed to react?
Mixtures of helium and oxygen are used in scuba diving tanks to help prevent the bends, which is a condition caused by nitrogen bubbles forming in the bloodstream.
1.30 grams of ammonium nitrate is combined with 74.0 grams of h2o in a coffee-cup calorimeter nbspat an initial
Alkynes can be hydrated in the presence of acid and HgSO4, by electrophilic addition of a molecule of water to the triple bond.
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