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The nonvolatile, nonelectrolyte solute aspirin, C9H8O4 (180.10g/mol), is soluble in diethyl ether CH3CH2OCH2CH3. How many grams of aspirin are needed to generate osmotic pressure of 6.70atm when dissolved in 223mL of diethyl ether solution at 298K.
What are the frequency and the energy of a photon of light at each of these wavelengths. What are the energies in kJ/mol
considering the following two nuclear processes which produce isotopes useful for medical
How much energy is required to completely vaporize a gallon jug of ice (128g) at 0C in 10 seconds? (in kilojoules)
why is the vertical movement of air critical to the formation of clouds and precipitation? how is this vertical
How much heat is required to raise the temperature of 42.5 g of water from its melting point to its boiling point?Express your answer numerically in kilojoules.
Calculate the molarity of a solution that is 7.00% by mass Magnesium sulfate and has a density of 1.071g/ml
Write a Lewis structure for each of the following molecules.
The student then adds more water until the solution volume becomes 1.0 L Write the eqn for each large-extent B/L A/B rxn which occurred on making this mixture. Do this by starting with the rxn that involves the strongest B/L A with the strongest B..
An unknown compound contains only carbon, hydrogen, and oxygen (C_x,H_y,O_z). Combustion of 4.50 g of this compound produced 6.60 of carbon dioxide and 2.70 of water. How many moles of carbon,C , were in the original sample
Write and balance the equation for the complete combustion of heptane, C7H16. You do not need to include any phase symbols or energy
calculate gibbs free energy and determine the type of thermodynamic reaction.n2gnbsp 3h2gnbsplarrrarr 2nh3gnbsp
Compound Y has a solubility of 2.0 g/100 mL in water and 20.0 g/100 mL in ether. What weight of compound Y would be removed from a solution of 1.8 g of Y in 100 mL of water by a single extraction with 100 mL of ether?
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