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Explain if an unknown gas takes 2.41 times longer to effuse than methane (CH4) then Define what is the molar mass of the unknown gas?
How many moles of N2O5 will remain after 1.0 min. How many minutes will it take for the quantity of N2O5 to drop to 0.005 mol.
Monochromatic light falls on any one of the diodes that comprise the detector array of your OcieanOptics spectrometer. The signal is directly proportional to what quality of the light that impinges on it?
The standard enthalpy of atomization of an element is the energyrequired to convert 1 mole of an element in its most stable form at25 centigrade to 1 mole of monatomic gas. Given that the standardenthalpy of atomization for sodium is 108.4 kJ mol-..
0.90 g of hydrogen chloride (HCl) is dissolved in water to make 5.5 L of solution. What is the pH of the resulting hydrochloric acid solution?
Draw the skeletal structure of meso-2,6-diaminopimelic acid (meso-2,6-diaminoheptanedioic acid). (Show one wedge bond, one dashed bond, and two sticks attached to the chiral carbon.
Compute the bicarbonate and carbonate alkalinities, in mg/L as CaCO3, of the water having a total alkalinity of 233.0mg/L as CaCO3 and a ph of 10.47
if the molar enthalpy of water is 6.009 kjmol how much energy is needed for 4.5 moles of ice to melt at
the heat of vaporization of a liquid is the energy required to vaporize 1.00 mol of a liquid at its boiling point. in
How many grams of solid calcium hydroxide Ca(OH)2 are required to prepare 200 mL of a 0.05 M solution. Molar mass (formula weight) of Ca = 40.1 g/mol, O = 16.0 g/mol, and H = 1.01 g/mol.
a he tank contains 25.2 l he at 8.4 atm. determine how many 1.5 l balloons at 755 mm hg can be inflated with the gas
There is a mixture that is soluble only in methylene chloride. I wanna run the column in 10% Ethyl acetate/hexanes. Which method of column loading should I use in this case and why?
If 6.0 moles of ethene and 6.0 moles of hydrogen are introduced into a 2.0 L sealed vessel and allowed to equilibrate at 200ºC, what is the equilibrium concentration of the ethene
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