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Problem : What is the heat energy required to convert 0.261 moles gaseous ethanol at 300 deg.c to 25 deg.c at 1 atm with the following information
Specific heat
Liquid =2.45 j/g.deg.c and vapor = 1.43 j/g.deg.c
Latent heat of vaporization= 40.5 Kj/mol
Show that (∂H/∂P)T = 0 for an ideal gas using thermodynamic relationships and the definition of G
a chemist measures the vloumes of 1.00 mole n2 and 1.00 mol so2 and finds they differ by 0.30 l. which gas produced the
under constant-volume conditions the heat of combustion of benzoic acid c6h5cooh is 26.38 kjg. a 1.640-g sample of
A diatomic gas X2 reacts with another diatomic gasY2 to form gaseous XY3
In 1911, Hans Geiger and Ernest Marsden (working under Ernest Rutherford) conducted an experiment involving alpha particles and gold foil that led to the discovery of the nucleus in atoms.
While light of wavelength 420 nm is focused on a metal surface, electrons are ejected with a speed of 7.00 × 105 m/sec. Explain what is the binding energy of a mole of electrons to the metal
Express the concentration of a 0/0200 M aqueous solution of fluoride, F-, in a mass percentage and in parts per million. Assume the density of the solution is 1.00 g/ml
What mass of Au is produced when 18.6 ampere of current are passed through a gold solution for 29.0 minutes.
Consider the bronsted-lowry reactions taking place in these solutions. Indicate the type of Bronsted-Lowry species that characterizes the acid-base chemistry of the referenced solution.
Assuming 100% dissociation, calculate the freezing point and boiling point of 2.60 m K3PO4(aq). Constants may be found here.
Problem- Calculate the effective radiation dosage (in Sieverts) for a 69-kg person who is exposed to 4.9 × 109 particles of alpha radiation. Assume that 81% of the radiation is absorbed
Carbonyl fluoride is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, via the reaction
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