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The solubility of Xe in water at 1 atm pressure and 20 °C is approximately 5 X 10-3 M .Compare this with the solubilities of Ar and Kr in water (Table) and explain what properties of the rare gas atoms account for the variation in solubility.
how could you determine whether a white powder was zinc sulfide or sodium carbonate using a hydrochloric acid solution?
you recrystallize 300 mg of solid material and obtain 200mg. what is your percent recovery. if you concentrate some of the mother liquor and obtain a further 40 mg, what is your total percent recovery
considering the given reaction nog o3g-no2g o2g and determine the rate constant for the reaction at 75 degreesnbspif
Assuming complete dissociation of the solute, how many grams of \rm KNO_3 must be added to 275 \rm mL of water to produce a solution that freezes at -14.5 ^\circ {\rm C}? The freezing point for pure water
The ballon ascends to and altitude where the pressure is 504 mmHg and temperature is -34degree celcius . What is the volume of the ballon at this altitude
A 2.55 g sample of titanium metal chemically combines with chlorine gas to form 10.45 g of a titanium chloride. What is the empirical formula of the sample and what is the percent by mass of titanium and chlorine in the sample
How many mL of concentrated HCl (At 25C is 36.46 g/mol), should be diluted to prepare 25.0L of a solution that has a pH of 1.20
Merely two forces act on an object mass=2.31 kg. Find the magnitude and determine the direction relative to the × axis of the acceleration of the object.
Describe how biological membranes are organized: what roles do lipids and proteins play in this organization
It is again evacuated and then filled with a gas of unknown molar mass. When reweighed, the flask is found to have gained 8.108 g.
Each tablet contains 80. mg of the active ingredient and comes in bottles of one hundred. How many mL of a 0.100 M solution of HCl are required to dissolve ther active ingredient in a full bottle of Gaviscon tablets?
The reaction is first-order in N2O5, with the specific rate constant 6.08 x 10-4/s. Calculate the reaction rate at these conditions. a. [N2O5] = 0.200 mol/L b. [N2O5] = 0.319 mol/L
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