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Helium gas is contained in a pressure vessel of volume V=10m3. Determine the mass (in kg) of helium in the tank if the temperature is 20°C and the pressure is 4 bar. Use the ideal gas law. For Helium, M=4.003 kg/kmol.
A student mixes 5.0 mL 2.00 x 10-3 M Fe(NO3)3 with 4.0 mL 2.00 x l0-3 M KSCN, and 1.0mL deionized water. She finds that in the equilibrium mixture the concentration of FeSCN2+ is 1.2 x l0-4 M.
How many moles of Al2S3 are produced using 12.8 grams of Al and 7.59 x 10-2 moles of S8
Provide a structure for the following compound: EI mass spectrum: two molecular ions of about equal intensity at m/z = 180 and 182; IR: 1740 cm-1; 1H NMR
if you mix 2.000 moles of so2 and 3.000 moles of cl2 in a one-liter flask so2cl2g w so2g cl2g and the keq 291 what is
If an automobile airbag has a volume of 9.80 L, what mass of NaN3 is required to fully inflate the airbag upon impact under conditions of atmospheric pressure (1.00 atm) and room temperature (25 C).
when hydrochloric acid reacts with magnesium metal hydrogen gas and aqueous magnesium chloride are produced. what
Calculate the maximum Cu(2+) contamination os the acid in moles Cu(2+) per liter. What is the corresponding contamination if the hydrogen partial pressure is reduced to 10^-4 atm
At 0.0 degrees C, if the volume of air is 2.5 mL and the pressure of the atmosphere that day is 805 mmHg, what is the number of moles of air.
what is the phase of matter of the solute and solvent of sterling silver?
a 13 ml sample of a solution of pbclo32 was diluted with water to 17 ml. a 15 ml sample of the dilute solution was
when benzene is treated with cyclohexene in the presence of a lewis acid catalyst such as aluminum chloride
When given the reactants in a reaction and their concertration and the time it takes for the reaction to occur, how do you find the rate expression, the order of reaction for each reactant, and the k constant for the reaction
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