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A solid mixture of KCl, KNO3, and Ba(NO3)2 is 20.92 mass % chlorine, and a 1.000 g sample of the mixture in 500.0 mL of aqueous solution at 25 C has an osmotic pressure of 744.7 mm Hg.
What are the mass percents of KCl, KNO3, and Ba(NO3)2 in the mixture?
compute the change in temperature when 1.1 g of sodium chloride is dissolved in 300.0 ml of water initially at 26 c.
What is the percent yield of a reaction in which 216 g phosphorus trichloride reacts with excess water to form 134 g HCl and aqueous phosphorus acid (H3PO3)
An electrochemical cell is constructed by coupling a Cu(II)/Cuhalf-cell with an Ag(I)/Ag half cell. The concentration of Cu(II)and Ag(I) are both 0.010 M. The observed potential
Aspirin (acetylsalicylic acid, ) is a weak monoprotic acid. To determine its acid-dissociation constant, a student dissolved 2.00 of aspirin in 0.600 of water and measured the . What was the value calculated by the student if the of the solution w..
At constant pressure 1.60 kJ of heat is evolved when cd.e grams of ethane burned. Write the thermochemical equation for this reaction, including labels for the all states of all reactions and products. Your GU ID number is G00071922
the substitution reaction of (2R)-2-bromopentane and CH3O- undergoes substitution with NaOCH3.
Given Heisenbergs uncertainty principle, how can it be that it is so important for quantum mechanics, but not much of a concern for our every day actions
a gas has a volume of 2.57L, a pressure of 1.54 atm, and a temperature of 24.5 C. calculate the number of moles of gas present.
According to the Bronsted-Lowry definition, which chemical in the following reaction is the acid? CO32- + H2O -> OH- + HCO3
Calculate the internal energy change (delta(U)) for vaporization of 100 g of CI2(l) at this temperature and 1 bar? (b) Calculate its molar entropy change (delta(S)) for vaporization at this condition.
Write he basic principles and instrunmentaion of conductomery
Calculate the mass of nitrogen dissolved at room temperature in an 84.0 home aquarium. Assume a total pressure of 1.0 and a mole fraction for nitrogen of 0.78.
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