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A 134-mL bubble of hot gases at 217C and 1.79 atm escapes from an active volcano. What is the temperature, in C, of the gas in the bubble outside the volcano if the new bubble is 164mL and the pressure is 0.759 atm?
This solution is to be prepared by allowing water at a set pH to reach equilibrium with solid Fe(OH)3. What pH should be used for the aqueous solution to give this desired concentration of [Fe3+]
write the ground state electron configuration( using molecular orbital theory) for o2 and show that it is paramagnetic.
Sulfamic acid, HSO3NH2, and sodium nitrite, NaNO2, should not be brought together as solids for safety reasons, why is water added to the vial containing your unknown sample as well as to the Erlenmeyer flask containing sulfamic acid
using a nitrogen gas sample in a container with capacity 1.64 litres a pressure of 121 atm is exerted by this gas
What will be the volume of the balloon after half of the moles of helium leak out, it is warmed to 10 °C, and the pressure is lowered to 0.75 atm?
a research supervisor told a chemist to make 100 g of chlorobenzene from the reaction of benzene with chlorine and to
After completing the calculations below, sketch the pH curve for the titration of 25.0 mL of 0.150 M solution of a weak base, B (Kb = 6.8 x 10^-5), with 0.150 M HI. Indicate the pH
Use line notation to represent the electrochemical cells for each of the following overall redox reactions
Calculate the concentration of chloride ions in a saturated lead(II) chloride (Ksp = 2.4 ? 10-4) solution.
Compare the relative rate of the foward (EtOH as a substrate) and back reaction (with acetylaldehyde). Use the Michaelis-Menten equation to solve for v when ethanol is 99mM and acetylaldehyde is the substrate and its concentration is 1mM
Use the data below from an electron impact mass spectrum of a pure compound to deduce its structure. DRAW your structure in the drawing window. Mass Spectrum M/z Relative intensity 73 1.0 72 25 57 8 43 100 29 17
A pentapeptide was found to contain the amino acids Phe, Gly, Met, Ala, and Ser. N-Terminal analysis yielded the PTH derivative of alanine. Partial hydrolysis of the pentapeptide yielded the dipeptides
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