Essays Tagged: "molecular weight"

Determination of an unknown amino acid from a titration curve

mentally were 2.0, 4.0, and 9.85. The acceptedpKa values were found to be 2.10, 4.07, and 9.47. The molecular weight was calculated to be 176.3 whilethe accepted value was found to be 183.5. The ident ... igure 6. Thevolume of titrant between two equivalence points is helpful in the determination of the molecular weightof the amino acid.Fig. 6The purpose of experiment 11 is to determine the identity of ...

(7 pages) 100 0 4.1 Apr/1997

Subjects: Science Essays > Chemistry

Excretion and Elimination of

The only things that determines if a molecule will pass through the pores of the glomerulus is it's molecular weight. The lower the molecular weight, the easier it will pass through the pores. Another ... sue and lipid layers of the skin. They will stay there for the duration of theanimals life time.The molecular weight of a compound will determine if the compound will be excreted in the urine or feces ...

(4 pages) 39 0 4.5 Jan/1997

Subjects: Science Essays > Biology

How is hydrogen chloride produced in industry and lab, its uses and preacautions to its hazards

physical and chemical properties of hydrogen chloride:Description Colorless gas or colorless liquidMolecular formula HClMolecular weight 36.46Density 1.49 g/L @ 25° CBoiling point -84.9° C (H ... action linking the molecules of a simple substance (monomer) together to form large molecules whose molecular weight is a multiple of that of the monomer. There are two general types of polymerization ...

(3 pages) 29 0 5.0 Oct/2004

Subjects: Science Essays > Chemistry

Curry Aids Alzheimers Disease and it's growing problem against our elderly ones health, this is a book report on an article from the UCLA times

is derived, is an extremely potent antioxidant and anti-inflammatory agent. This is due to it's low molecular weight and molecular polarity, which enables it to penetrate large proteins and break them ...

(3 pages) 33 0 5.0 Jan/2005

Subjects: Social Science Essays > Psychology

Colchicine.

(S) N-(5,6,7,9-tetrahydro- 1,2,3, IO-tetramethoxy-9-oxobenzo [alpha] heptaien-7-yl) acetamide. The molecular weight of it is 399.2 grams.Colchicine has 4 isomers,each pair has either R or S configura ... n.(-)-(aS,7S)-Colchicine is the natural isomer which can interconvert between aR and aS* C22H25NO6* molecular weight is 399.4426* melting point is 142 degrees Celsius* water solubility is less than 10 ...

(1 pages) 17 1 1.0 Sep/2005

Subjects: Science Essays > Chemistry

Proteins

ss through cell membranes and set off metabolic reactions. They are all large molecules, ranging in molecular weight from a few thousand to more than a million, and they are specific for each species ...

(1 pages) 543 0 3.0 Mar/2006

Subjects: Science Essays > Biology

Melting point lab

o its crystal form.We will also identify an unknown compound by mixture melting point.Reagent Table:Molecular weight g/molMp o CBP o CDensitySolubilityAcetanilide135.1652114.33041.219Less than.1g at 2 ...

(5 pages) 29 0 0.0 Feb/2007

Subjects: Science Essays > Chemistry

Polymers

The answer to this question is fairly easy to put into words. A polymer is a large molecule of high molecular mass, formed by the joining together, or polymerization, of a large number of molecules of ... ed monomers. That brings up another question, what is a monomer? A monomer is a molecule with a low molecular weight. (chem 8th pgs. G-9, G-11) In the year 1827 a scientist by the name of Jons Jakob B ...

(6 pages) 48 0 3.0 Nov/2001

Subjects: Science Essays > Chemistry

Cleaning up after the exxon valdez was a mistake

ynuclear hydrocarbons are substantially present. Other constituents include waxes and complex, high molecular weight asphaltenes. (Abelson) All of these substances and more are present in Prudhoe Bay ...

(5 pages) 22 0 3.0 Feb/2008

Subjects: Science Essays > Biology

Complex bonding

mically and physically from its parent atoms.In this lab, we realized that the stronger the intermolecular forces are, the smaller the delta t is. This is because it takes longer to break these bo ... e is a greater dispersion force, and therefore a lower delta t. Butanol and pentane have a similar molecular weight, but butane’s delta t is lower than pentane’s delta t. This is because butanol h ...

(1 pages) 1522 0 0.0 Sep/2008

Subjects: Science Essays > Chemistry

Core 1 Notes: Production of Materials

some of the fractions from the refining of petroleumCatalytic cracking is the process whereby high molecular weight fractions are broken down to low molecular weight ones. This process is used in pet ... ose is a naturally occurring condensation polymer with the monomer unit of glucose. Glucose has the molecular formula, C6H12O6 or HO-C6H10O4-OH. When polymerisation occurs, a water molecule, between a ...

(16 pages) 34 1 4.0 Nov/2008

Subjects: Science Essays > Chemistry