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Open vessels containing water, benzene and mercury were left open in a lab with no ventilation overnight. The dimensions of the lab are 5 m x 5 m x 3 m. What mass of each will be present in the air assuming the liquid and vapor are in equilibrium? The vapor pressures at 300 K are 3.2 kPa, 13.1 kPa, and 0.23 kPa respectively.
Write down the expression for the radial distribution function of a 3p electron in a hydrogenic atom and determine the radius ar which the electron is most likely to be found
A 4.78 g sample of aluminum completely reacts with oxygen to form 6.67 grams of aluminum oxide. Use this date to calculate the mass percent composition of aluminum in aluminum oxide.
An opened can of soda goes "flat" because the partial pressure of carbon dioxide is lower in the atmosphere than in the unopened can. Fish kills may occur in the summertime because an inadequate amount of oxygen is dissolved in the water. A soluti..
Calculate the pH when 2.00 mL of 0.0275 M NaOH are added to 50.0 mL of buffer solution.
The concentration of glucose in blood is approximately 90 mg/100 mL. What is the weight/volume percent concentration of glucose. what is the molariy of glucose
Provide calculations and explain how 100 ml of 0.5 M NaCl in 25 mM sodium phosphate buffer, ph 8, will be prepared.
A gas mixture contains 75.2% nitrogen and 24.8% krypton by mass. What is the partial pressure of krypton in the mixture if the total pressure is 884mm Hg
an adult person radiates heat to the surroundings at about the same as a 100-watt electric incandescent lightbulb. what is the total amount of energy in kcal radiated to the surroundings by an adult in 24 hours?
A 9m^3 room contains a canister of CO2 with a faulty valve. At a level of 75 mole % CO2, breathing the air becomes lethal. The room temperature is 25 degrees Celcius.
Calculate the work done (in J) on the surrounding atmosphere (1atm pressure, 25.5 oC ) by the evolution of hydrogen in the subsequent reaction. State any assumptions you have made.
What would be the effect on the results of mistakenly adding 2.43 x 10^-3g Mg to 4.0mL of 0.1M HCl, rather than to 4.0mL of 1.0M HCl as instructed
What is the new boiling point point of water if you add 188 grams of magnesium chloride to 1250 g of water.
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