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A sample of oxygen collected over water at 22C and 762 torr. what is the partial pressure of the dry oxygen. Vapor pressure of water at 22C is 19.8 torr
If the concentration of mercury in the water of a polluted lake is 0.375 ug (micrograms) per liter of water, what is the total mass of mercury in the lake, in kilograms, if the lake has a surface area of 14.65 square miles and an avery depth of 35..
If a non-insulated metal piston is filled with perfect gas at 1 atm of presssure and room temp and the gas is compressed with 10atm, the gas initially heats up and then cools down.
Explain how the Pka hisdidine 57 is important to its role in mechanism of chymotrypsin action
What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 25.4 cm higher than the level in the arm open to the atmosphere and the atmosphe..
On a climb up mt. Whitney, the atmospheric pressure drops to 467 mmHg. What is the pressure in terms of the following units? a) atm; b) torr; c) in. Hg; d) Pa.
mercury ions hg2 2 can be removed from the solution by precipitation with cl-. suppose that a solution contain aqueous
what is an example of a hypothesis testing for the percentage of ethanoic acid in vinegar? Give me examples of hypotheses and how to test them. thanks :)
Calculate the entropy change resulting from an increase in temperature from 285 K to 350 K of H2O2 given Cp = A + BT + CT^2 Where A=34.25, B = 55.18 and C = -35.15.
if 625g of fe3o4 is produced in the reaction, how many molecules of hydrogen are produced at the same time?
What might have happened if the temperature of the oven were set to 210 degrees
A 30.0 mL sample of 0.30M HClO (aq) is titrated with 0.20 M NaOH (aq). Ka of HClO is 3.5*10^-8. a. What volume of base is needed to reach the equlivance point. b. Determine the pH of the equlivance point.
what function of acetic acid in rection to yield acetanilide? can it be changed to another
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