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Calculate the density of propanol C3H8O if you know that there are 1.069×10 25 molecules of propanol in 1.35 L.
If 88 J of heat are added to a pure gold coin with a mass of 20 g, what is its temperature change? Specific heat capacity of gold is 0.128 J/g'C
What volume of .250 M calcium chloride would be required to precipitate silver chloride if it is mixed with 600.0 ml of 0.650 M Silver nitrate.
Concentration of H 2 is observed 2.15 moles/L When the reaction N 2 (g) + 3 H 2 (g) ?? 2 NH 3 (g) comes to equilibrium. Determine the numerical value of the Kc equilibrium constant?
What is the molecular formula of the molecule that had an empiricial formula of C2 H4 S and a molar mass of 180.35% g/molecular.
A gaseous mixture of O2 and Kr has a density of 1.114 g/L at 431 torr and 325 K.What is the mole percent O2 in the mixture.
A tablet of Vitamin C changed color at 23.7 mLs of Iodine. how do you determine how much vitamin c is in the tablet.
Calculate the molar concentration of OH- ions in a 7.5×10^-2 M solution of ethylamine C2H5NH2(Kb = 6.4x10^-4).
15.0 moles of gas are in a 5.00L tank at 22.2°C. compute the difference in pressure between CH4 and an ideal gas under these circumstances. The van der Waals constants for CH4 are a=2.300L2⋅atm/mol2 and b=0.0430 L/mol.
The second-order reaction, 2 Mn(CO)5 Mn2(CO)10 has a rate constant equal to 3.0 x 109 M-1s-1 at 25°C. If the initial concentration of Mn(CO)5 is 1.0 x 10-5 M.
What is the specific heat of aluminum if the temperature of a 28.4 g sample of aluminum is increased by 8.1 oC when 207 J of heat is added.
Determine the energy in joules of a mole of photons coupled with red light of wavelength
It is found for the reaction A + B > C that doubling the concentration of either A or B while keeping the other one constant quadruples the reaction rate. Write a rate law for the reaction
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