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What is the freezing point in of a solution prepared by dissolving 4.80 of in 110 of water? The value of for water is 1.86 , and the van't Hoff factor for is = 2.7.
Lead poisoning in children used to be treated with intravenous injections of EDTA. If the concentration of EDTA in the blood of the patient is 2.60x10^-8 M and the formation constant for the complex
At a local convenience store, you purchase a cup of coffee, but, at 98.4 degrees celsius, it is too hot to drink. You add 45.9 g of ice that is -2.2 degree celsius to 248 mL of the coffee. What is the final temperature of the coffee
if argon of 0.214 mol nbspoccupies 652 ml determine the volume of 0.375 mol of c4h10 gas under the same temperature and
What mass of NaOH is needed to precipitate the Cd^{2+} ions from 38.0 mL of 0.480 M Cd(NO_3)_2 solution
How would the presence of a double or triple bond help to determine the geometric shape of a molecule?
Write a balanced chemical equation for the neutralization reaction upon which this titration is based, and indicate clearly which atom is being protonated
An evaluation of R was performed, following the procedure described in this module. The barometric pressure was 736 torr, the temperature was 295k and volume of hydrogen gas collected was 35.6 mL. The calculated value of R was 82.1 mL atm K^-1 mol..
If the density of water is 1.00g/mL, what is the weight in pounds of gallon of water? you may assume that mass and weight are equivalent at the earth's surface.
In an artificial transmutation process, a nucleus of Al-27 absorbs an alpha particle and emits a neutron. What is the new nuclide formed
Calculate the pressure exerted in the closed end of an apparatus similar to that depicted in Figure 1 if the atmospheric pressure is 720.0 torr and the height of the water column is 22.3cm.
If the heat of combustion for a specific compound is -1100.0 kJ/mol and its molar mass is 75.49 g/mol, how many grams of this compound must you burn to release 390.70 kJ of heat
A sample conaining both HCl and HNO3 had a density of 1.083g/ml. A 30.00 ml amount of this sample required 25.78 ml of 0.3248 M NaOH for titration. Another 30.00 ml amount of this sample required 24.47 ml of 0.1327 M AgNO3 for titration
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