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Explain the atmospheric pressure in Mexico City is about 580torr. Briefly define the difference between this and the standard atmospheric pressure at the sea level.
How many moles of H3O+ must be added to 482 mL of a solution to adjust the pH from 8.80 to 5.56? Use E notation and 3 significant figures.
A gaseous mixture of O2 and Kr has a density of 1.140 g/L at 415 torr and 300. K. What is the mole percent O2 in the mixture?
If the active site of chymotrypsin excludes water when its substrate binds, how is it possible for a water molecule to participate in the second stage of catalysis
a volume of 200mlk of nitrogen is collected over water at a temperture of 24 degrees celcius and the atmospheric
of 2.60 cm^2.if solar radition is 1150 W/m^2, how many photons strike the leaf every second.
Which protein(s) will bind tightly to CM Sephadex (a cation exchange resin) if loaded onto the column in a sample buffer whose pH is 7.0
Methane is burned in a Laboratory Bunsen burner to give CO2 and water vapor. Methane gas is supplied to the burner at the rate of 5.0 L/ min ( at temperature of 28° C and a pressure of 773 mm Hg).
0.25 g of sodium hydroxide (NaOH) pellets are dissolved in water to make 8.0 L of solution. What is the ph of this solution?
The temperature of the calorimeter and the 1 kg of water rose from 20.45 degrees Celsius to 23.65 degrees Celsius. The heat capacity of the calorimeter is 2.21 kJ/Degrees Celsius. Using this information, determine the heat of combustion per mole o..
What happens to the body that allows it to compensate (over this period of time) for the reduced pressure , so that the athletes will not become lightheaded?
How much heat energy is required to convert a 1.00 L block of ice at -40.00 degrees Celsius to steam at 250.0 degrees Celsius?
1. How large (in kg) an oxygen candle (KClO3) would be needed to supply 8 people with enough oxygen for 24 hours on a small submarine. The average person needs .84 kg of O2 per day.
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