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Explain in terms of colligative properties, ion pairing, and van't Hoff factors why the freezing points of the following set of 0.100 m aqueous solutions follows the trend LiF>LiCl>NaI>CsI>FeI2>FeI3
Calculate the mass of ferrous ammonium sulfate you would need to add to a 5.00 mL volumetric flask to make a solution
The standard enthalpy of sublimation of carbon dioxide is 26.3 kJ/mol at 190 K. Estimate the standard enthalpy of formation of solid carbon dioxide at 298 K, in kJ/mol.
The mass spectrum of an organic compound shows the relative abundances of M to be 46.08% and M 1 to be 1.495%. Assuming the peaks are caused by 12C and 13C isotopes, determine the number of carbon atoms in the compound. Natural abundances
in the reaction between potassium carbonate and calcium nitrate balanced eq k2co3 cano32--gt k2no32 caco3 why wouldnt
At rush hour, the noise from a highway is 1.0 *10^-4 W/m^2 with 100 cars passing a given point a minute. At night the average noise is reduced to 1.0*10^-6 W/m^2. How many cars are now driving on the highway.
Water with an alkalinity of 2.00*10to negative 3eq/lhas a ph 7.0 calculate [co3][HCO3]-[CO3] and [OH]-
What is the relationship between K and Kc?
Determine the Kelvin temperature required for 0.0470mol of gas to fill a balloon to 1.20L under 0.988atm pressure.
Describe a non-chemical application of Le Chatelier's principle. What is the system in equilibrium. What is the stress. How does the system respond.
The concentration of Al and Na in a sample of riverwater are 0.050 mg/kg and 5.2 mg/kg respectively. Express concentrations in molality of both Al and Na
The concentration of SO42- (aq) in a sample of river water can be determined using a precipitation titration in which a salt of Ba+ (aq) is the standard solution and BaSO4 (s) is the precipitate formed. What is the concentration of SO42-
Calculate the amount of solution (g or mL) that contains each of the following amounts of solute. Express the answer to two sig fiugres and include the appropriate units.
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