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1.2 mol of helium is mixed with 2.3mol of argon in a volume of 1.0L and a temperature of 25.0 degree C. Assuming that helium and argon are perfect gases, what is the pressure of the mixture?
Calculate the binding energy for Cf-253 if one atom of this nuclide has an atomic mass of 253.08417. Express your answer in units of picojoules/nucleus where 1 picojoule = 1x10-12 joule
Find out the exact significant figures for each of the values - Indicate the number of significant figures
gaseous carbon dioxide and liquid water react in the presence of chlorophyll to produce aqueous glucose (c6h12o6 ) and oxygen gas.
What is the change in the internal energy of the system as the system travels down the isotherm from state A to state C? Change in internal energy down the isotherm = 0.000
Nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia. N2 (g) + 3H2(g) >> 2NH3(g)
After the reaction occurs and the temperature returns to 22°C, what is the pressure inside the flask? (Neglect the volume of the solid product.)
Consider a 1.00-L solution containing 85.5 g Al2(SO4)3 (FW = 342.15) and 21.3 g Na2SO4 (FW = 142.06). What are the molar concentrations of aluminum, sodium, and sulfate ions, respectively.
A large amount of aqueous ammonia is added to a Cd^2+ solution and the complex ion Cd(NH3)4^2+ forms. Write the equation for this reaction.
4.41-g sample of a salt dissolves in 9.10 g of water to give a saturated solution at 25°C. What is the solubility (in g salt/100 g of H2O) of the salt.
A sealed balloon is filled with 1.00 L of helium at 23 degrees celsius and 1.00 atm. The baloon rises to a point in the atmosphere where the pressure is 220 torr and the temperature is -31 degrees celsius.
How many possibilities are there to assort the billiard balls in a line (include the (white) cue ball)? How many possibilities are there to arrange 6 red and 6 yellow balls in a line?
Assuming that you start with 2.00 g of sodium benzoate and 5 mL of 3 M HCl, and assuming that the reaction proceeds to form benzoic acid, what would your theoretical yield be
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