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What is the concentration of an ethanol (C2H6O) solution if the solution exerts an osmotic pressure of 1230 mmHg at 50 degrees C?
The heat of vaporization of liquid water is 40.67 kJ/mol, and the molar heat capacity is 75.3 J/ (K x mol) for the liquid and 33.6 J/ (K x mol) for the vapor.
what is the rate constant for this reaction at 398 K ? I know that the answer is 1.2 s-1 but I don't know how to get it . Can anyone explain it to me please?
2.4g of N2, 2.4g of H2, and 9.6g of CH4. What is the mole fraction of H2 in the mixture?
Calculate kp given that the initial pressures of nitrogen are 95 atm and 80 atm, respectively, and the equilibrium pressure of nitrogen oxide is 6.0 atm. I know the answer is 5.1x10^-3. I am trying to find how is that number possible.
(b) calculate the moles of each gas before the reaction (c) determine the limiting reactant (d) calculate the moles of ammonia produced (e) calculate the partial pressures of all species in the system (f) the total pressure in the system
Ammonia is both a donor and an acceptor of hydrogen in hydrogen-bond formation. Draw a diagram showing the hydrogen bonding of an ammonia molecule with two other ammonia molecules.
How many mL of 2.56M solution of KCl are required to prepare 500.0 mL of 1.33 L of a 0.175M KCl solution
approximately how many grams of NH4Cl will dissolve in 100g of H2O at 70 C?
how many grams of cu metal 63.55 gmol will be plated out of a cuno32 solution by passing a current of 3.00 amperes for
The freezing-point depression measurement of benzoic acid in acetone yields a molar mass of 122 g; the same measurement in benzene gives a value of 242 g
Draw the following compound. Be sure to specify the stereochemistry via wedge-and-dash bonds.
Which of the following signs on q and w represent ( work is done on the systemby gaining heat from the surrounding) ? a- q=+, w=- b- q=-, w=+ c- q= + ,w=+ d- q=- , w= -
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