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Question- In your own words explain how Archimedes principle can be used to measure the volume of an irregularly shaped solid?
My main issue is that I think I have to have a balanced reaction in order to do the calculations.
Calculate the number of moles of ions present in 58.5 g of a solution that is 8.68% Fe2(SO4)3 by mass. a) There are 0.0635 moles of ions in this solution. b) There are 0.0127 moles of ions in this solution.
What is the percent by mass of oxygen in a gaseous mixture whose molar composition is 0.500% CO2 and 99.500% air? The composition of air is 21% mole O2
Describe an experiment that could prove that the ADH-catalyzed oxidation of ethanol to acetaldehyde is stereospecific.
Calculate the change in entropy (deltaS) when one mole of diamond is heated from a temperature of 0 K to 400 K at a constant pressure of 1 bar
A 295mLflask contains pure helium at a pressure of 742torr . A second flask with a volume of 465mL contains pure argon at a pressure of 717torr .
Make the compounds listed from an alkyl halide having four carbons or less, with no functional groups but it can be branched, or cyclohexane, cyclopentane, or ehylene oxide.
Technetium-99m is used for radioisotope-guided surgical biopsies of certain bone cancers. A patient must receive an injection of 28mCi of technetium-99m 6-12 hours before surgery.
A sample of N2O gas effuses from a container in 48seconds. Explain how long would it take the same amount of gaseousI2 to effuse from the same container under identical conditions
A gas is compressed from an initial volume of 5.60 to a final volume of 1.23 by an external pressure of 1.00 . During the compression the gas releases 125 of heat.
The dissolution of ammonium nitrate occurs spontaneosly in water 25 degrees celcius. As NH4NO3 dissolves, the temperature of the water decreases. What are the signs of Delta H, Delta S, and Delta G for this process
The amount of I3-(aq) in a solution can be detrmined by titration with a solution containing a known concentration of S2O32-(aq)( thiosulfate ion). The determination is based on the net ionic equation.
A gas mixture containing oxygen, nitrogen and neon exerts a total pressure of 1.20 atm. If helium added to the mixture increases the pressure to 1.50 atm, what is the partial pressure (atm) of helium
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