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A metal undergoes allotropic transformation α --> β at room temperature and high pressure. This transformation is endothermic. The same transformation occurs at some low temperature ( < 298K) at 1 atm. Is the volume change associated with this transformation positive or negative?
The density of a gaseous element at 310oC and 1.02 atm is 2.64 g/L. What is the molecular weight of the element
What would be the molar ratio of base to salt for the buffer and how many grams of the salt should be added to the 400 mL of a 0.12 M solution of base to get to the desired pH
how many grams NaOH must be added to 250mL of .10M HC2H3O2 in order to bring pH to 4.50
what is the maximum mass of sucralose (C12H19Cl3O8) you can add to 3.0 kg of pure water and still have the solution freeze? Assume that sucralose is a molecular solid and does not ionize when it dissolves in water
Using standard enthalpies of formation from Appendix 2A, calculate the standard reaction enthalpy for the following reaction, the final step in the production of nitric acid
molybdenum metal must absorb radiation with a minimum frequency of 1.09 x 1015s-1 before it can emit an electron from
from your understanding of collniative properties how would you design an experiment to measure the freezing point of a
Question- The Nuclear mass of Fe-56 is 55.9207 amu. Calculate the binding energy per nucleon for Fe-56. (units J/nucleon)
Explain the development of MRI imaging technology is one useful spinoff of the basic research into the structure of the atom. Research, but, is expensive. Numerous people argue that the high cost of research outweighs it potential benefits
the solubility of o2g in water is 4.43 mg o2100 g h20 at 20 degree celsius when the gas pressure is maintained at 1
The molar heat of fusion of water is 6.01kJ/mol. how much heat energy is required to melt one ice cube in a soft drink to form liquid water at 0 degrees Celsius if the ice cube has a mass of 18.g
If 1.87 g of acetic acid(CH3CO2H) reacts with 2.31 g of isopentyl alcohol(C5H12O) to give 2.96 g of isopentyl acetate(C7H14O2), what is the percent yield of the reaction
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