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A 1 L glass bottle contains 200 mL of water and 800 mL of air at 25 degrees C. If 100 microL of pure toluene is injected into the glass vial (which is immediately sealed), what is the concentration of toluene in the air space of the bottle and what is the concentration of toluene in the water? The dimensionless Henry's Law Constant for toluene at 25 degrees C is 0.265 (mg/Lair)/mg/Lwater). The specific gravity of toluene liquid (i.e., the density of toluene divided by the density of water) is 0.867
When 0.800 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 13C is observed.Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL.
Which process is accompanied by an increase in entropy?
Twenty grams of a solute are added to 100g of water at 25C. the vapor pressure of pure water is 23.76 mmHg, the vapor pressure of the solution is 22.41 torr.
A researcher conducts an experiment to determine the work function of a palladium surface. She fires a laser with a wavelength of 254 nm at a certain time and observes electrons hitting a detector
When scuba diving, it is important to come back to the surface of the water from deep dives slowly. If this does not happen, then the diver can get the ?bends?.
A cube of osmium metal 1.500cm on a side has a mass of 76.31g at 25°C. Calculate the mass of 0.1500L of benzene at this temperature.
a reaction that contributes to the depletion of ozone in the stratosphere is the direct reaction O(g)+O3(g)-->2O2(g) at 298K the rate constant is 4.8*10^5M-1s-1 use delta H values from appendix C to estimate
Calculate the standard heat of reaction, or , for this reaction using the given data. Also consider that the standard enthalpy of the formation of elements in their pure form is considered to be zero.
A bottle containing 345 g of cleaning solution is used for carpets. If the cleaning solution has a specific gravity of 0.850, what volume of solution was used?
The specific heats of ice and water are 2.09 and 4.184 J/g.°C, respectively. The heat of fusion for water is 334 J/g.
Determine What is the final concentration and calculate what is the Ksp of this salt at temperature of 25 degrees Celsius?
Write a balanced titration reaction. (b) Write two different half-reactions for the indicator electrode.
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