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Calculate the maximum number of milligrams of H2O that can possibly be extracted from 1.00g of tetraphenylarsonium chloride dihydrate, (C6H5)4 AsCl•2H2O?
1770 mm hg and the temperature in your work area is 22.0c how many moles of co2 are in the flask? 2 how many grams of
Naturally occuring iodine is iodine-127. medically, radioactive isotopes of iodine-125 and iodine-130 are used. a)write the atomic symbol for each isotope. b)in what ways are the isotopes similar, and in what ways do they differ
An aqueous solution has a vapor pressure of 84.0 at 50 . The vapor pressure of pure water at this temperature is 92.6 . What is the concentration of in mass percent?
What is the ppm concentration? The molar extinction coefficienet is 87,000 M^-1cm^-1 and the molecular weight is 407.98 g/mol. The density of water is 1.00 g/mL.
If an air bubble was initially in the buret tip but was dispensed during the back titration of the unreacted HCl. As a result of this technique error
Show how 1,4-diphenyl-1,3-butadiene might be synthesized from benzaldehyde and an appropriate halogenated compound.
the ratio of the number of nuclei in the first excited nuclear energy level to the number of of nuclei for a nucleus with ε1 - ε0 = 1MeV at 25C. At what temperature is kBT on the order of ε1 - ε0. Note 1MeV = 10^6eV
Solve for the new pressure in each of the following, with n and V constant: 1)A gas with a pressure of 1.25 atm at 90 Celsiusis cooled to -17 Celsius. 2)A sample of N2 with a pressure of 790 mm Hg at -75 Celsius is heated to 34 Celsius
Illustrate this by showing the reaction of trans-p-anisalacetophenone with bromine and 2,4-dinitrophenylhydrazine to give the corresponding products
a argon gas sample has a volume of 795 litres at a pres-sure of 1.28 torr and a temperature of 104 degree celsius. then
These 3 solutions including 2.362 g of Rb2S, 1.635 g of NaClO 4 , and 0.796 g of CuCl 2 , respectively are combined together? now calculate what would be the mass of this precipitae?
calculate the wavelength of the photon emitted when an electron drops from 4d obital to a 2p orbital in a hydrogen atom using Rydberg constant as 1.097 x 10-2 pm-1 .
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