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A 3.0 L bulb containing He at 129 mmHg is connected by a valve to a 2.0L bulb containing Ar at 110 mmHg. Calculate the partial pressure of each gas and total pressure after the valve between the flask is opened.
p(He) in mmHg ?p(Ar) in mmHg?ptotal in mmHg?
one of the lines in the emission spectrum of sodim has a wavelength of 590 nm. what is the frequeuncy of this line?
At 25 °C, the equilibrium partial pressures for the following reaction were found to be PA = 1.40 atm, PB = 8.90 atm, PC = 5.10 atm, and PD = 2.50 atm.
Determine the mole fraction of each component to at least three significant figures.
the mass spectrum determined the molecular weight of mehtyl salicylate to be 125.15 g/mol. What is the molecular formula of methyl salicylate?
Calculate the pH of the resulting solution at each of the specified points in the titration. Initially: pH of HCl
What is the concentration for each substance at equilibrium for the following gaseous reaction if the initial concentration of ethene,
Did enzyme denaturing affect the active site? what amino acid residue in catalase would change by more basic PH
Lead has a face-centered cubic lattice with all atoms at the lattice points and a unit-cell edge length of 495.0pm its atomic mass is 207.2 amu what is the density of lead?
Which solution will have the lowest boiling point?
A compound is analyzed and found to contain 12.1% carbon, 16.2% oxygen, and 71.7% chlorine (by mass). Calculate the empirical formula of this compound.
What mass of ethylene glycol, HOCH2CH2OH, must be dissolved in 4.510 kg of water to result in a freezing point of 18.0°C? What is the boiling point of the same solution?
As you may well know, placing metal objects inside a microwave oven can generate sparks. Two of your friends are arguing over the cause of the sparking, with one stating that the microwaves "herd" electrons into "pointy" areas of the metal object,
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