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Suppose that you are performing an extraction of an aqueous solution with an organic solvent that has a density less than water. propose a method to identify and collect only the organic solvent. assume that water and you solvent of interest are not miscible
NO(g) + O2(g)-------- 2NO2 0.85 mol of NO is mixed 0.494 mol of O2 Calculate the number of moles of NO2 produced and Limiting reactant
Show all long pair electionrs (this means even those unreactive lone pairs), proper mechanistic arrows, all intermediate steps, and all side reactions if any. If you write them by hand please write clearly so I can understand everything.
Calculate the de Broglie wavelength of the bullet traveling at 1289 miles per hour. Physical constants can be found here.
A chemist needs to determine the concentration of a solution of nitric acid, HNO_3. She puts 865 mL of the acid in a flask along with a few drops of indicator.
Propose a mechanism for the following reaction. Be sure to show all the steps and the reactive intermediates
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum
A balloon of methane gas, CH4, has a temperature of - 2.0 Degrees Celsius and contains 2.35 g of the gas. What is the temperature of the gas in kelvins
Compare the electrical conductibities of Sodium Chloride (NaCl), ammonium nitrate (NH4NO3), calcium sulfate (CaSO4), and distilled water. Account for any differences noted in the electrical conductivities of these compounds.
What would be the change in pressure in a sealed 10.0 L vessel due to the formation of N2 gas when the ammonium nitrite in 1.9 L of 1.250 M NH4NO2 decomposes at 25 degrees C? NH4NO2 --> N2 + 2 H2O
61.0 mL of a solution(1.60 M) is diluted to a volume of 208 mL. A portion of that solution(104-mL) is diluted using 121 mL of H 2 O. determine the final concentration?
You put your arm around the persons waist and use your fist to push up on the persons abdomen, an action called the Heimlich maneuver. a) How would this action change the volume of the chest and lungs? b) Why does it cause the person to expel the ..
Write the equilibrium constant expression, Kc , for the following chemical reaction.
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