Solubility equilibrium

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  • Spacer Lab Report

    General procedure: One equivalent of spacer was coupled using 2.4 equivalents of inhibitor, 0.18 equivalents of copper sulfate, 0.36 equivalents of (+)-sodium-L-ascorbate, in a mixture of 10% H2O in DMF, 24 mL/mmol spacer. The mixture was placed in the microwave for 30 minutes at 80oC Pro6 Spacer (10) (30 mg, 0.036 mmol) and 18 (36 mg, 0.087 mmol) were dissolved in 778 µL DMF. Copper sulfate (1.62 mg, 0.006 mmol) and sodium-L- ascorbate (2.57 mg, 0.013 mmol) were dissolved in 86 µL H2O. The two…

    Words: 393 - Pages: 2
  • Iron Determination Lab Report

    Iron determination From accurately carrying out the iron determination experiment, this meant that we could then do some calculations to work out the exact concentration of iron in the tablet and the exact amount which is made up of iron, these are stated in my conclusion. We carried out this practical safely when rinsing and using the glassware as there was no breakages or injuries caused by the glassware. Whilst handling the chemicals we wore disposable gloves, goggles and lab coats at all…

    Words: 739 - Pages: 3
  • Nt1310 Unit 4 Lab 4

    Electrostatic Potential allows for scientists and chemists to calculate the atomic charges of large molecules. LogP is also known as the partition coefficient which is the ratio of concentrations of a compound in a mixture during two phases at equilibrium. LogP can be used to find distributions of chemical compounds in drugs, and how well those drugs can reach and affect their intended targets. Lastly,…

    Words: 367 - Pages: 2
  • Leaf Chromatography Lab Report

    different pigments relative to original line where you put the spot of leaf extract. (Bazil) Which pigment is the most soluble and which is the least soluble in petroleum ether? Each pigment has a different solubility in the solvent due to their unique molecular structures and differing polarities. Solubility plays in an important role in determining unknown pigments in a sample. In the case of the lab, the most soluble pigment should have the highest Rf value and should have travelled the…

    Words: 535 - Pages: 3
  • Alka Seltzer Experiment Essay

    a solvent speeds up the movement of its particles. This speeding up will cause more solvent particles to collide into the solute. Under those circumstances, solute particles end up breaking loose and dissolve faster. Temperature usually affects solubility rates. Heating up the solvent gives the molecules more kinetic energy. The faster motion means that the solvent molecules collide with the solute with a higher frequency and the collisions occur with more force. Both components help to…

    Words: 1462 - Pages: 6
  • The Importance Of Reactive Intermediate

    Aeshah Alrubayyi CHM 643 Reactive intermediate has been important investigated in physical organic chemistry. It classes to carbocations, carbenes, carbanions and free radicals. Recently, observable intermediate classified as reactive, and an unobservable intermediate is kinetically when occurs at a branch point in a mechanism. A reactive intermediate is formed in the rate determining step of a reaction and then goes to give products in low barrier. Also, the hydrocarbon reaction of terminal…

    Words: 1102 - Pages: 5
  • Norton Pond Case Study

    Table 2. Recorded data of Physical and chemical properties of Wakefield Pond. Figure 3. Graph of temprature vs Depth in each lake. Figure 4. Graph of oxygen concentration vs Depth in each lake. Figure 5. Graph of light vs Depth in each lake. Figure 7. Sketches of plankton and relative aboundace from all two lakes Figure 8. Sketches of plamkton and relative aboundance from all two lakes. Figure 6. Fish in Wakefield Pond variety and numbers. Discussion Lake…

    Words: 997 - Pages: 4
  • Acetone Dimethyl Ketone 2-Propane

    Introduction Acetone (dimethyl ketone, 2-propane, CH3COCH3), formulation weight 58,079, isthe simplest and the most important of the ketones. It is a colourless, mobile, flammableliquid with a mildly pungent and somewhat aromatic odour. It is miscible in all proportionswith water and with organic solvents such as ether, methanol, ethyl alcohol, and esters.Acetone is used as a solvent for cellulose acetate and nitrocellulose, as a carrier for acetyleneand as a raw material for the chemical…

    Words: 958 - Pages: 4
  • Floating Slimes Essay

    Silver, lead, arsenic, bismuth, antimony, selenium, and nickel are common impurities existing in copper anodes. Some impurities dissolved from the anodes can precipitate, if their concentrations in the electrolytic solution are above saturation levels. Some of these precipitates can settle down but some are floating slimes and can be a source of cathode contamination by their incorporation into the cathode 16. These floating slimes are amorphous and typically have compositions of Sb-As-O and…

    Words: 1864 - Pages: 8
  • Solubility And Bioavailability Of Ginkgo Biloba Extract

    Wang et al. (2015) formulated a solid dispersion to improve the solubility and bioavailability of Ginkgo biloba extract (GE) through hot melt technology. The polymer studied were Kollidon® VA64/Kolliphor® RH40 (85:15) and the extrusion was carried out at 120-125⁰C with 100 RPM with 25% drug load. DSC and XRD studies confirmed the amorphous conversion of the GE and the dissolution carried in 250ml of 0.1N HCl showed that the dissolution of solid dispersion of GE was significantly improved (2-3…

    Words: 876 - Pages: 4
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