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In the lab, 0.115g of an unknown lipid was combined with 5.0mL of Chloroform and 10.0mL of Hanus iodine solution and store in the dark for 30 minutes. After the 30 minutes, 4.0mL of 15% KI solution and 40.0mL of water was added to the solution. The solution was titrated with 0.09787M Sodium Thiosulfate (Na2S2O3). When the solution became yellow, a few drops of 1% starch solution was added. The titration was continued until the solution was colorless. A total of 8.84mL of Sodium Thiosulfate was used until the solution was colorless.
The questions asks to calculate the iodine number for the lipid.
If a solution contains 0.01 M Ca^2+, 0.01 M Zn^2+, and 0.01M Ni^2+ ions and you want to separate them using aqueous (NH4)2C2O2, which ion will precipitate first as an oxalate, CaC2O4, ZnC2O4, or NiC2O4
a 3.20 l sample of neon at 4.57 atm is added to a 11.0 l cylinderthat contains argon. if the pressure in the cylinder
A 0.1964 g sample of quinone (C6H4O2) is burned in a bomb calorimeter that has a heat capacity of 1.56 kJ/ Celsius. The temperature of the calorimeter increases by 3.2 Celsius. Compute the energy of combustion of quinone per gram and per mole.
Include square brackets around the coordination complex. Do not include the oxidation state on the metal. Use parentheses only around polyatomic ligands. For ethylenediamine use (en) in the formula.
Question- Describe the essential differences between atomic emission and absorption spectroscopy. Feel free to utilize diagrams to clarify your explanation
Briefly describe the adverse effects caused by exposure to radiation. Include some specific exposure levels associated with these significant health effects.
What major differences would exist in protein structures between earth and this hypothetical planet.
Calculate the molecular weight of glucose
Question- A crystal lattice has copper at all the face positions and nickel at all the body positions in a unit cell. What is the formula of the unit cell
A metal, M, was converted to the chloride, MCl2. Then a solution of the chloride was treated with silver nitrate to give silver chloride crystals, which were filtered from the solution
What concentration of Ca2+ must be added to 0.010 M oxalate (C2O^-2 4) to precipitate 99.0% of the oxalate.
Boyle's Law: When setting up your gas sample in the syringe, withdraw the plunger to a volume of ___ mL.
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