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An 95.4-mL sample of wet O2 is collected over water at 21.3 degrees celcius at a barometric pressure of 741mmHg (vapor pressure of water at 21.3 degrees celcius = 19mmHg).
Known: The partial pressure in this sample of O2 is 722mmHg.
What is the volume percent O2 in the gas collected?
How many grams of O2 are present in this sample?
Method is the most important part, if need be use different values as long as your method is clear.
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An object is coated with a layer of chromium that is 0.015 cm thick. If the object has a surface area of 15.3 cm squared, how many atoms of chromium are used in the coating. The density of chromium is 7.19 g/cm cubed.
A certain compound is made up of three chlorine atoms, one phosphorus atom, and one oxygen atom.
What mass of sodium formate must be added to 400.0 mL of 1.00 M formic acid to produce a buffer solution that has a pH of 3.50
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