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A dilute solution of potassium permanganate in water at 25 °C was prepared. The solution was a in a horizontal tube of length 10 cm, as well as at first there was a linear gradation of intensity of the purple solution from the left where the concentration was 0.100 mol dm-3 to the right where the concentration was 0.050 mol dm-3. Explain what are the magnitude and sign of the thermodynamic force acting on the solute (a) close to the left face of the container, (b) in the middle, (c) close to the right face? Provide the force per mole as well as force per molecule in each case.
An arctic weather balloon is filled with of helium gas inside a prep shed. The temperature inside the shed is . The balloon is then taken outside, where the temperature is . Calculate the new volume of the balloon.
write a balanced equation for the photosynthesis reaction in which gaseous carbon dioxide and liquid water react in the
The vapor pressure of water at 40.0 degrees celcius is 55.32 mmHg. Calculate the vapor pressure of a solution of 1.50m K2CO3 at this temperature (assume 100% dissociation)
You dilute 1 ml of this solution to 25 ml with distilled water; the measured absorbance is 0.2. What is the concentration of the original concentrated solution
A balloon has a volume of 10,500 liters, and the temperature is 15°C. If the temperature were -25°C, what would the volume of the balloon be?
A reversible adiabatic expansion of NO2 (g) from an initial V=20dm^3 and an initial T=300K to a final P=1bar. Find Vf, Tf, and the change in entropy for both the system and surroundings.
Solve an equilibrium problem (using an ICE table) to calculate the of each of the following solutions. A.) .16 M CH3NH2
draw structures of the active sites of the deoxy and oxy form of hemerythrin showing the complete ligands attached to
Calculate the concentration of HY3- in a solution prepared by mixing 10.00mL of .010M VOSO4, 9.9mL of .010M EDTA and 10.00mL of buffer with a ph of 4.00
In order to understand the prehistory of the Hawaiian island of Lana'i better, anthropologists Maria Sweeney, Melinda Allen, and Boyd Dixon used radiocarbon dating on charcoal found in an ancient dwelling site, the Kaunolu Village National Histor..
Semiconductors, such as silicon, are the heart of the circuits that form the basis for computers and other electronics. These materials are characterized by a gap in the energy
State a balanced chemical equation for the reaction that occurred. Remember that halides are present in solution as sodium salts (Example sodium bromide)
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