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1. Explain what is the boiling point of toluene at 600mmHg?
2. Define what are the colors of CoCl2 and CoCl2 . 6H2O?
3. If a liquid that has a density of 0.80 + or - g/mL is soluble in cyclohexane. Define what liquids may this be?
Determine the final state and temperature of 100g of water orginally at 25 dgree after 50 kj heat added to it. Ist water, water steam or steam
To be effective, intracellular signaling molecules must be inactivated/removed when their effects are no longer needed. Provide the methods by which this occurs for the following classes of intracellular messengers
Calculate the wavelength of a photon emitted when the electron in a Li2+ ion relaxes from the n=6 energy level to the n=4 energy level.
Assume a weather balloon is a perfect sphere with radius, r=3m. Archimede's principle states that if something is less dense than air it will rise until its density is equal to the density of air it displaced. Assume air is 80% nitrogen and 20% ox..
Reactivity of monosaccharides. Give the fate (what happens to) an aldose monosaccharide in the presence of a weak oxidizing reagent (oxidation reaction). Give the fate of (what happens to) a ketose monosaccharide in the presence of H2 and a Pt cat..
Calculate boiling point of a solution of 500.0 g of ethylene glycol dissolved in 500.0 g of water. kf = 1.86 c/m and kb = 0.512 c/m. Use 100 degrees celsius as the boiling point of water.
have 2.50 ml of 4.00 M sugar solution. You add 217.3 ml of water to this solution. determine the concentration of the sugar solution after the water has been added.
The reaction caused the temperature of the water to rise from 21.0 to 24.7 C. What is the enthalpy of this reaction. Assume that no heat is lost to the surroundings or to the coffee cup itself.
At a certain temperature, the Kp for the decomposition of H2S is 0.726 H2S = H2+S initally only H2S is present at a pressure of 0.126 atm in a closed container.
Estimate the volume occupied by 2.76kg of methane at 325 K,10atm ,using the van der waals equation.
During a fire, it was expected by the fire department report that the tank temperature rose to 365 degrees Fahrenheit. Find out the pressure of the oxygen gas in the tank during the fire.
what will the concentration of all the reactants and products be when the reaction reaches equilibrium at 527 degrees C?
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