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The pressure on 0.850 mol of neon gas is increased from 1.25 atm to 2.75 atm at 100 degree Celsius. Assuming the gas to be ideal, calculate delta S for this process.
A 150 -g sample of water is cooled from 30 degrees C to 15 degrees C, thereby losing approximately 9420 J of heat. What is the change in E in J.
A sample of the unknown complex is analyzed and has an absorbance of 0.528. What is the molar concentration of Cu^2+ ions in the unknown solution?
A 35.8-g sample of cadmium metal was melted by an electric heater providing 4.66 J/s of heat. If it took 6.92 min from the time the metal began to melt until it was completely melted, what is the heat of fusion per mole of cadmium?
A.117 gram sample of a metal reacts with hyrdochloric acid to produce 36.3 ml of dry hydrogen gas, measured at STP. what is the equivalent weight of this metal?
Why isn't the pH at the equivalence point always equal to 7 in a neutralization titration? When would it be 7?
The paint formerly used on some storage tanks contained aluminum powder, which reflected heat from the surface of the tanks. Why did experts recommend grounding these tanks
What pH condition (either more soluble in acidic solution OR pH = 1 or more soluble in basic solution of pH= 13) would improve the following compounds solubility in water:
When ethane (C2H6) reacts with chlorine (Cl2), the main product is C2H5Cl, but other products containing CI, such as C2H4CI2, are also obtained in small quantities.the formation of these other products reduces the yield of C2H5CI.
What is the purpose of distilling two mixtures whose boiling points are very close.
An unknown metal sample is subjected to a beam of monochromatic light with a wavelength of 322 nm. Electrons are ejected from the metal surface with a velocity of 5.20 x 105 m/s. What is the threshold frequency of the metal?
The protons that give rise to the signal at 7 ppm are more shielded than the protons that give rise to the signal at 9 ppm. B) The protons that give rise to the signal at 7 ppm are less shielded than the protons that give rise to the signal at 9 p..
How much energy in kilojoules is required to convert 260 mL of water at its boiling point from liquid to vapor?
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