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A 738 mL sample of nitrogen (N2) was collected by displacement of water at 24C under a total barometric pressure of 1270 torr. What mass of dry nitrogen was collected? The vapor pressure of water at 24C is 22 torr.
if a sample of gas at 25.2 C has a volume of 536 mL at 637 torr, what will its volume be if the pressure is increased to 712 torr.
at 25.0degc a sample of xe gas occupies 531 ml in a piston-cylider apparatus when the external pressure is 337 torr. at
The change in enthalpy Delta H for a reaction is -39.6 kJ/mol. The equilibrium constant for the reaction is 4.4×103 at 298 K.What is the equilibrium constant for the reaction at 635 K?
what is the freezing point of an aqueous solution of a nonvolatile solute that has a boiling point of 102.45 0C?
the 20 ml of water added to the erlenmeyer flask is to be previously boiled deionized water. Since water does absorb CO2 from the atmosphere and since CO2 dissolved in the water causes it to be slightly acidic
Which of the following terms would be used in a description of the mechanism of this reaction: a. tertiary carbanion b. 2-methylpentoxonium ion Torn between the two
Calculate the osmotic pressure of a solution containing 25.9g of glycerin (C3H8O3) in 243.5mL of solution at 310K.
Carbon dioxide makes up approximately 0.04% of the Earth's atmosphere. If you collect a 2.0L sample from the atmosphere at sea level (1.00 atm) on a warm day
a sample of hydrogen gas initially at 29C and 7.0 L iscooled until its final volume is 2.9 L. What is its final temperature
what mass of barium is produced when molten BaCl2 is electrolyzed by a current of 3.30 105 A for 7.00 hours?
What is the density of lead (in ) if a rectangular bar measuring 0.500 in height, 1.55 in width, and 25.00 in length has a mass of 220.9 ?
Calculate the molar mass of the unknown gas. Remember that the faster the rate of effusion, the shorter the time required for effusion; that is, rate and time are inversely proportional.
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