Continued until the solution was colorless

Assignment Help Chemistry
Reference no: EM132403683

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.

Reference no: EM132403683

Questions Cloud

Determine the spacing between energy levels : Determine the spacing, ?E, between energy levels E1 and E2 (in J) for the case where trapped atom is (a) 3He and (b) 129Xe.
Since technology is the infrastructure of society : Since technology is the infrastructure of a society, we don't just "do IT", but need to know that our IT works/projects contribute to a business strategy
Change in the temperature and the amount of gas : What is the volume of the gas (in mL) at 6.2 atm? Assume that there is no change in the temperature and the amount of the gas.
EgyE 205 Energy Engineering Laboratory Assignment : EgyE 205 Energy Engineering Laboratory Assignment Help and Solution, University of Philippines - Assessment Writing Service - compute for the design.
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.
Calculate the saponification number for the lipid : Calculate the saponification number for the lipid. Calculate the concentration of the original KOH and the actual concentration of HCl.
Evaluate the implications of changing environmental factors : Evaluate the implications of changing environmental factors on organizational choices within a global environment and formulate solutions.
From a quantum-chemical point of view : Consider an atom confined to a linear cavity of length 2.0 nm inside a molecular sieve material. From a quantum-chemical point of view, this system
Explain why orbitals are lower in energy : Explain why s orbitals are lower in energy than p orbitals in a multi-electron system, but are degenerate in a one-electron system.

Reviews

Write a Review

Chemistry Questions & Answers

  Explain which ion will precipitate first as an oxalate

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 320 l sample of neon at 457 atm is added to a 110 l

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

  Compute the energy of combustion of quinone per gram

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.

  Explain brackets around the coordination complex

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.

  Describe the atomic emission and absorption spectroscopy

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

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

What major differences would exist in protein structures between earth and this hypothetical planet.

  Calculate the molecular weight of glucose

Calculate the molecular weight of glucose

  A crystal lattice has copper at all the face positions

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

  Explain the chloride was treated with silver nitrate

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

  Define what concentration of ca2+ must be added to oxalate

What concentration of Ca2+ must be added to 0.010 M oxalate (C2O^-2 4) to precipitate 99.0% of the oxalate.

  Maximum pressure the gauge

Boyle's Law: When setting up your gas sample in the syringe, withdraw the plunger to a volume of ___ mL.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd