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You need to examine a mixture of alkanes. Which separation method will you choose and why? Consider two cases: a). mixture of low molecular weight alkanes less than 15 carbons in the molecule; b). mixture of compounds with more than 20 carbon atoms in the molecule paraffins.
Will a precipitate form when 20.0mL of Pb(NO3)2(aq) with a concentration of 2.50x10-4 mol/L is reacted with 45.0mL of CaCl2(aq) with a concentration of 1.25x10-3 mol/L
calculate the volume of a sample of carbon monoxide at -21degc and 359 torr if it occupies 3.65 l at 298 k and 758
What is the pOH of a solution that is prepared by mixing 25.0 mL of 0.200 M HNO3 and 25.0 mL of 0.150 M KOH
When an aqueous solution that is 1M each in HCl, ZnCl2, and CoBr2 is electrolyzed, the elemental products formed initially at the cathode and anode are, respectively
A gram of a salt dissolves in 4.9ml of water to from a saturated solution whose specific gravity is 1.08, how many gram of salt will be contained in 100ml of the saturated solution
Choose the correct expression for Keq and description (homogeneous or heterogeneous) for the following reaction: Sn2+(aq) + H2(g)---> Sn(s) + 2 H+(aq)
you place ethanol of 100 grams and water of 100 grams in a refrigerator. both are at room temperature initially.
what product would you expect to obtain from the mixed claisen condensation between ethyl acetate and diethyl oxalate?
A 135.0 L weather balloon filled with 4.9 moles of helium has a small leak. If the helium leaks at a rate of exactly 10mmol/hr what is the volume of the balloon after 72 hours
The osmotic pressure of the solution is 1.21 atm at 27 °C. What is the molar mass of the solute?
A 75 kg person drinks 550 g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 20% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake?
Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition
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