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The U.S. Food and Drug Administration lists dichloromethane (CH2Cl2) and carbon tetrachloride (CCl4) among the many chlorinated organic compounds that are carcinogenic (cancer-causing). What are the partial pressures of these substances in the vapor above a solution of 1.19 mol of CH2Cl2 and 1.48 mol of CCl4 at 23.5°C? The vapor pressures of pure CH2Cl2 and CCl4 at this temperature are 352 torr and 118 torr, respectively.
What is the pH of a solution of a strong acide like tintric acid, HNO3, which is 5.6 x 10^-4 M? [HNO3 is a strong acide, so it is completly ionized in aqueous solution
does it mean that the solution will shift towards the products because there is excess of reactants? what does it mean when the solution is orange (is it shifting towards products or reactant)?
The mitochondrion has two membranes, the inner and outer- the outer membrane is porous and enables many molecules to freely diffuse. The inner membrane is different from the outer membrane as it is only penetrable to o2
the external pressure is constant at 1.00 atm; and 4) the heat of vaporization of water is 2.26 kJ/g. What is q for the vaporization of 1.00 g of liquid water at 1.00 atm and 100C, to the formation of 1.00 g of steam at 1.00 atm and 100C
A free particle of mass m in a one-dimensional box with infinite walls at x=0 and x=L, given by the potential function: V(x)= 0 for x =0 L
A compound contains only carbon, hydrogen, and oxygen. Combustion of 138.7 g of the compound yields 203.3 g of CO2 and 83.23 g of H2O.
When no single electronic formula can be drawn for a stable molecule so as to maintain the octet rule and still fit the observed properties
20 sample of dry ice is added to a 765 flask containing nitrogen gas at a temperature of 25.0 and a pressure of 715 .
in an organic compound % of carbon is 75.2%,% of hydrogen is 10.75 and % of oxygen is 14.03..Find the empirical formula of compound?
A 32.65-g sample of a solid is placed in a flask. Liquid toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 50.00 ml.
Sodium bisulfite solution is added to an experiment at the end in order to destroy the unreacted bromine. What reaction is occuring here? Is HSO3- acting as an oxidizing or reducing agent? Write a balanced equation.
If a salty crude sample was analyzed to have 110.6 ppm salt, calculate the pounds of salt per 1000 bbls of crude
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