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How much ethylene glycol must be added to your car's cooling system along with 5.0 kg of water to obtain a freezing temperature of -15 oC? The freezing point depression constant of water = -1.86 oC.m-1
A mixture of cis and trans GKW was analyzed using UV-Vis spectroscopy to make absorption measurements at two different wavelenghts. From the data given below, calculate the molar concentrations of the cis and trans isomers
Use the standard reduction potentials to find the equilibrium constant for the following reaction at 25 degree Celcius:
When you are trying to calculate molarity, what volume do you use? I have a final volume of NaOH and an initial Volume and volume of NaOH
Suppose you are given 150 mg of an unknown mixture that contains three compounds, and you are told to separate the compounds using column chromatography, using alumina as a stationary phase. How would you decide what solvent or solvent system to u..
aniline is being reacted with dimedone with an mgso4 catalyst. how does the lewis acid play a role in the mechanism? if
Assume also that on a yearly basis the lake is completely mixed, and that the small river flowing into and out of the lake can be neglected as far as acidification is concerned. How many years will it be before the lake will reach a pH of 5.0?
A reaction in which A, B, and C react to form products is zero order in A, one-half order in B, and second order in C. By what factor does the reaction rate change if [A] is doubled
How many grams of F2 are needed to produce 120. g of PF3 if the reaction has a 78.1% yield?
What is the theoretical yeild of sodium carbonate for the equation: 2NaHCO3(s)--> Na2CO3(aq) + H2O(g) + CO2(g)
Calculate ?SO (universe) for the formation of 1.00 mol of HCl (g) from gaseous hydrogen and chlorine at 25 OC. Is the reaction spontaneous at that temperature
what is the concentration of solute particles or ions in moll present in 1 l of the following aqueous solutions? assume
If 18.6 of 0.800 solution are needed to neutralize 5.00 of a household ammonia solution, what is the molar concentration of the ammonia?
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