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A gas occupies a volume of 350 ml at 3000. mm of Hg and 25.0oC. The number of moles of gas present is:
A 94.4 g sample of dinitrogen monoxide is confined in a 1.7 L vessel. What is the pressure (in atm) at 115°C
The final volume of the balloon is 1500 mL. The atmospheric pressure is 1.00 atm. What was the original pressure of HI in the cylinder before the release of HI
A laser pulse with wavelength 555nm contains 4.40mJ of energy. How many photons are in the laser pulse.
how many grams of ch4 must be burned to release 490 kj of heat based on this thermochemical equationch4 2 o2 --gt co2
Sketch a molecule of Pbr3Cl2 in which the chlorines are in axial position position. Sketch another molecules of Pbr3Cl2 in which the chlorines are equatorials positions.
What characteristic absorption bands would you expect to find in the infrared spectrum of caffeine?
What is the length of a cubic lose-packed unit cell of an element, in picometers, if the atomic radius is 187.0pm
A current is drawn from the cell until 2.20 g of silver have been deposited at the silver electrode. Calculate E for the cell at this stage of operation in volts.
dissolving 16.45 g potassium chloride in 86.77 g water. What is the concentration in weight percent for this saline solution?
Calculate the energy that must be transferred as heat to evaporate 1.00 kg of water at (a) 25 degrees celsius and (b) 100 degrees celsius
when 24.0 g of glucose a nonelectrolyte are dissolved in 500. g of water the solution has a freezing point of
If 100.0 g of water is warmed from 20.0*C to 35.0*C, what quantity of energy has been transferred to heat the water? (the specific heat capacity of water is 4.184 J/g*C)
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