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A gas-filled balloon having a volume of 2.50L and 1.2 atm and 25 Celsius is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23 Celsius and 3.00 x 10^-3 atm, respectively. Calculate the final volume of the balloon.
the characteristic odor of pineapple is due to ethyl butyrate a compound containing carbon hydrogen and oxygen.
If a sample of pure silver (Ag) contains 3.35 x 1022 atoms of iodine, how many moles of silver are in the sample?
a 51.0 g sample of ethylene glycol hoch2ch2oh is dissolved in 540.0 g of water. the vapor pressure of water at 32degc
Calculate the entropy change for the vaporization of liquid methane and liquid hexane using the following data, Methane CH4 -- Boiling point= 112K Delta H(vap) = 8.20kJ/mol
what is the energy of the light emitted in joules when an electron falls from the n=4 to the n=2 orbit in the hydrogen atom ? (E2= -328 kJ/mol , E1= -82 kJ/mol)
1.201 g of a solid white acid are dissolved in water and completely neutralized by the addition of 28.41 mL of 0.418 M NaOH. Calculate the molar mass of the acid, assuming it to be a monoprotic acid.
Calculate the molar mass of a vapor that has a density of 6.735 g/L at 13°C and 825 torr.
Will a red blood cell undergo crenation, hemolysis, or no change in each of the following solutions
a melting point determination of vanillin melting point 80 c was made with a heating apparatus setting at the maximum
Pyridine(C5H5N) is a weaker base in H2O than 2,6 lutidine (dimethylpyridine), but we observe that the pyridine-BF3 complex is more stable than the comparable lutidine-BF3. Explain the reason for this inversion in stabilities.
Draw the structure(s) of the product(s) of the Claisen condensation reaction between ethyl phenylacetate and ethyl formate.
How many liters of NO(g) can be made from 17.57 L of O2(g) and 16.55 L of N2(g) at STP?
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