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A gas sample occupying a volume of 44.3 mL at a pressure of 0.923 atm is allowed to expand at constant temperature until its pressure reaches 0.377 atm. What is its final volume?
assuming that the gas behaes ideally. Then repeat the calculation by using the van der Waals equation
what is the voltage after the addition of the following volume of NaI solution? The reduction potential for the saturated calomel electrode is E = 0.241 V. The standard reduction potential for the reaction is E0 = 0.79993 V.
Determine the mass of Cr 3 + in the original solution if The total mass of the precipitate = 49.6 .
What is the final volume of 845 mL of neon gas at 202°C if the gas is cooled to 86.0°C?
If a 180 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.51.0 , what is the average thickness of the sheet in meters?
calculate teh PH of 2.0m NaCN. what is the concentration of HCN in the solution?
How many moles of oxygen atoms are combined with 4.20 moles of chlorine atoms in Cl2O7?
A hydrogen molecule in it's ground vibrational state with KE=10eV coollides with heavy atom metal surface and no energy is transferred to the surface. The surface can be modeled as an infinite potential wall.
The enthalpy change for converting 1.00 mol of ice at -50.0 degrees C to water at 70.0 degrees C is ____ Kj. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-k and 1.84 J/g-k, respectively.
How many moles of methane occupy a volume of 2.00 l at 50.0*C and0.500 atm? (R=0.0821 atm*L/molxK)
Calculate the molecular weight of this gas if A sample of gas weighs 0.250 g and occupies a volume of 112 cm3 at STP?
an energy of 353 kJ/mol is required to cause a Mg atom on a metal surface to lose an electron. calculate the loses frequency of that can ionize a Mg atom.
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