Separation Of Mixtures And Its Effect On The Body

The purpose of this lab was to determine the empirical formula of copper oxide compound. In the lab, hydrochloric acid and copper oxide compound was mixed until it formed a blue solution. An oxidation-reduction reaction, a reaction in which there is an exchange of electrons between elements, was performed by adding zinc to the solution to displace the copper in copper chloride. Zinc, in this case, was oxidized by losing two electrons (0 → 2+) while copper was reduced by gaining two electrons (2+ → 0). Also, when the copper was displaced, it became a precipitate, which is a substance that comes out of a solution as a solid due to insolubility.

In this task the concentration of an unknown sample of copper sulphate using colorimetry was used to find the concentration. In this investigation copper sulphate was used which is CuSO4.5H20 as a formula. To make a standard solution which was 1M, the same clean equipment was used to make up the standard solution as used to make sodium carbonate. However there was one difference and that was that the hot distilled water was used to dissolve the copper sulphate crystals. There had to be enough hot water in order to dissolve the crystals into the beaker and then add cold distilled water to cool the solution.

Yes, because the solution seen was still blue meaning that not all the copper chloride was extracted from the beaker.

Solub. Or Reaction w/ hot H20: no change observed from the cool water and is soluble

A.|NaHCO3 + HCl|A2|Tiny bubbles formed around the edges. Under white paper it looked transparent, but under black paper there was some white in the middle. |

The mask also has a large amount of white and green, which are often recognized as tertiary colors, mostly used to fill in empty spaces or for design purposes. (www.freespiritgallery.ca)

The purpose of this experiment is to become familiar with the separation of mixtures of solid and learn separation techniques based on the chemical properties of a substance.

It is purple ish blue. It’s really beautiful. Texas is a large state in the Southern U.S. with deserts, pine forest and the

Distillation is a method of separating two volatile chemicals on the basis of their differing boiling points. During this lab, students were given 30 mL of an unknown solution containing two colorless chemicals. Because the chemicals may have had a relatively close boiling point, we had to employ a fractional distillation over a simple distillation. By adding a fractionating column between the boiling flask and the condenser, we were able to separate the liquids more efficiently due to the fact that more volatile liquids tend to push towards the top of the fractionating column, thereby leaving the liquid with the lower boiling point towards the bottom. After obtaining the distillates, we utilized a gas chromatograph in order to analyze the volatile substances in the gas phase and determine their composition percentage of the initial solution. Overall, through this lab we were able to enhance our knowledge on the practical utilization of chemical theories, and thus also demonstrated technical fluency involving the equipment.

Again I assume kaolin, used in the medium, is what gave the piece a white layer at the top.

When the plaque drops intot he water it dissolves and causes a brown tint in the water. If the tinted water comes from one faucet, it's time to call in a plumber

The blue and orange are complimentary to one another, and blue-green is a tertiary color. These pigments agree with one another. The way that they are placed on the canvas makes it easy for the eye to travel. The arrangement on the canvas begins at the top and works its way to the bottom. Much like the choice in color, the arrangement also assists in helping the eye to travel across the entire work of art.

At standard temperature and pressure exists as Greenish-yellow color irritant gas. Under high pressure or low temperature, it turns to clear, amber-colored liquid.

becomes a liquid and some may even evaporate but we know as it is in us to know that it is the same piece of

When I first looked at the picture, it looked like there were only two colors green and blue. When I got closer