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Explain what effect does the presence of nonvolatile solute have upon (a) the vapor pressure of a solution, (b) the freezing point, as well as (c) the boiling point?
The following data were obtained from experiments to find the molecular formula of procaine, a local anesthetic, which contains only carbon, hydrogen, nitrogen, and oxygen
Copper has two naturally occurring isotopes,63Cu (isotopic mass 62.9396 amu) and 65Cu (isotopic mass 64.9278 amu). If copper has an atomic mass of 63.546 amu, what is the percent abundance of each isotope?
Calculate the energy in kJ/mol of a mol of photons in the gamma ray region of the electromagnetic spectrum that has a wavelength of 4.13 pm. Express answer in scientific notation.
The elements X and Y form a compound that is 33.33% X and 66.67% Y by mass. The atomic mass of X is twice that of Y.What is the empirical formula of the compound?
Suppose the pH of the water is 4.59 and that the concentration of iron(II) in the water is 7.99x 10-5 M, what is the potential of the corrosion reaction under the above conditions at 298 K?
what is the ph at the stoichiometric point end point for the titration of 50 ml of 0.20 m methyl amine ch3nh2 aq with
a solution is prepared by condensing 4.00l of a gas measured at 27degc and 746mmhg pressure into 580g of benzene.
sample of amygdalin yields alpha hydroxyphenylacetic acid that consists of 70% of the R isomer and 30% of its enantiomer. What is the specific rotation of this mixture? The specific roation of pure (R)-alpha-hydroxyphenylacetic is -154.
If a second-period diatomic molecule has 4 electrons in its valence shell (total of 2s and 2p electrons), what is the predicted bond order of the molecule
what concentration in ppm would it constitute? The effective volume of the earth's atmosphere is about 4.2 billion km^3, and take the average pressure to be 550 mm Hg and the average temperature to be -10 degrees C. The molar mass of air is 29 g/m..
What is the profit-maximizing level of output for Joe's Ice Cream?
you have the following aqueous solutionsa 3.25 m cacl2b 3.25 m magnesium bromidec 3.25 m na3po4d 3.35 m sucrosewhich
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