Chem 222 Lab 5 Report Essay

8-4: Name the three-dimensional shape of this molecule. _double strand coiled into a double helix__

A. The size of the molecule. The larger molecule will diffuse more slowly than the smaller molecule.

The main objective of this experiment is to differentiate between a physical change and a chemical change.

alcohol, making it either primary (1° ), secondary (2° ), or tertiary (3° ). If the OH is bonded to only one other carbon, it is a primary alcohol (eg. 1-butanol); if bonded to two other carbons, it is a secondary alcohol (eg. 2-butanol); if bonded to three other carbons, it is a tertiary alcohol (eg. 2-methyl-2-propanol). Due to the placement of the hydroxyl functional group in each of the degrees of alcohol, the reactivity of each should be impacted. This means that all three

The Hydroxyl group on alcohols relates to their reactivity. This concept was explored by answering the question “Does each alcohol undergo halogenation and controlled oxidation?” . Using three isomers of butanol; the primary 1-butanol, the secondary 2-butanol and the tertiary 2-methyl-2-propanol, also referred to as T-butanol, two experiments were performed to test the capabilities of the alcohols. When mixed with hydrochloric acid in a glass test tube, the primary alcohol and secondary alcohols were expected to halogenate, however the secondary and tertiary ended up doing so. This may have been because of the orientation of the Hydroxyl group when butanol is in a different

6. Challenge yourself: Other than space, what might be another density-dependent limiting factor? Explain. A contagious disease would be a density-dependent limiting factor.

As a result of the water molecule bond, each (hydrogen; oxygen) has a slightly negative charge and each (hydrogen; oxygen) has a slightly positive charge.

This scientific paper investigates my hypothesis that "Higher molecular weight produce faster diffusion". Diffusion is a process of equalization which involves movement of molecules from an area of high concentration to an area of low concentration (Biology 101.1). As Thomas Graham (1831-1833) found out on his study that gases of different nature diffuse with each other, it is a challenge as to how true it

3. Test the effect of a magnet on each substance by passing the magnet under

Substance A and B were weighed; Substance A weighed 0.502 g and substance B weighed 0.503 g. Both substances were put into two different test tube with approximately 8 ml of DI water into the test tub. Substance A and B were stirred and B dissolved while A did not. This shows that B is soluble in water compared to A. Thus, shows that B is soluble in water than A. The reason why B is soluble in water is because it has a higher dipole moment than A. With a higher dipole moment, it shows that it is soluble in water since it is polar and the bonds were easily broken.

To make useful and effective cocktails, each individual fragment should have least structural similarity. As a result, the fragment fits substrate structure can be distinguished without confusing by structure analogues. Fragment 1/4, 2/6 and 3/5 are structural analogue pairs hence need to be separated. Therefore, grouping fragment 1/2/3 together and 4/5/6 together could be a choice for making cocktails with three fragments.

Note: Your prelab/lab report is to be done in your carbon copy lab notebook (sold in FIU bookstore)

The rate that a substance crosses the plasma membrane depends of the its surface area.

over the volume of the structure, an increase in the temperature which lead to the atoms having higher

Conclusion: The result supports the hypothesis, that as the mass increases so will the force as there is a general trend that shows when mass is increased so is the force.