Flame Test Lab

Our objective for the Sherlock Holmes Experiment was to illustrate that some chemicals can be identified or differentiated by simple chemical tests, such as solubility, pH, or color tests. In our group we had to test come common powders such as Alka-Seltzer, baking soda, flour, Vitamin C (ascorbic acid), and salt. Other chemicals that were used to do this experiment were vinegar, and Iodine 2 Solution. The equipment used to do this experiment was red litmus paper, and 5 test tubes per group.

The claim of this lab experiment was the percentage of Earth’s atmosphere that is oxygen is 21%.

Purpose: The purpose of the lab is to correctly describe and distinguish samples and models of elements, compounds, and mixtures.

The purpose of this lab is to find out how components of a mixture can be separated and analyzed.

Yes flame tests are valuable for detecting ions because each metal has a unique line spectrum, which is made up of different wavelength of light that gives off a certain color when heated.

The main purpose of this lab is to test substance and classify as ionic,polar,or nonpolar. Also to see how they react when they are melted and tested in water. Another purpose is to compare and contrast ionic compounds polar compounds and nonpolar compounds showing conductivity. Ionic have a high melting point. Polar have a moderate melting point and nonpolar have a low melting

Light is the product of a natural process, where electrons reach an excited state and then

Igniting passions in the classroom and blazing trails for careers in Wildland Firefighting and Fuels Management

The purpose of this lab is to determine the makeup of a compound through a series of tests. To do this, we will use qualitative analysis. Qualitative analysis is defined as the analysis of a substance in order to determine the nature of its chemical makeup (dictionary.com 1). The substance is a mixture of two different compounds. The substance will have a chlorine salt, either copper chloride or strontium chloride. It will also have one powder mixed in, which will be cornstarch, baking soda, or baby powder.

Main purpose of this lab is to do different tests to identify of an unknown aldehyde or ketone solution.

The aim of this experiment is to be able to identify the unknown solutions within the three different bottles. In this experiment a flame test and a solubility test were conducted in order to identify the unknown solutions. It is hypothesised that the flame test will be successful in identifying which cation (sodium, potassium and strontium) is in which solution through the colour of the flame. It is also predicted that the precipitate tests will successfully identify the anions (carbonate, sulphate and chloride) by testing the solubility of the solutions. The dependant variable is the chemicals in the unknown solutions. The independent variable is the flame test and precipitate test and the controlled variable is the unknown solutions which are tested.

In this experiment, we were given three main goals to accomplish. We were to identify the compound through a series of organized experiments and analyze as many physical chemical properties as possible.

basic. In the first part of this lab we had to make several solutions and using a litmus paper

In order to properly identify an unknown compound and its state of purity, it is important to take note of the compounds physical properties. The physical property that this lab focuses on is the melting point. The melting point is found through the use of a DigiMelt, which is a melting apparatus. When studying the melting point of a compound, it is important to note that the more pure a substance is, the higher the melting point and the narrower its melting point range. The purpose of this experiment is to identify known and unknown substances based off of their melting points.

In the AAS the sample under investigation is atomized and mixed with fuel-gas air mixture and introduced into the burner at a controlled rate. In the flame the solvent is evaporated and the sample is disassociated into atoms. The flame only acts as a trough of atoms of the elements under investigation. A beam of resonance radiation is provided by the hollow cathode lamp of the element under investigation is allowed to pass through the flame and then spectrophotometer assembly where in the transported light from the sample is measured by the photomultiplier, amplifier and recorded in convenient scale. In graphite AAS the technique is similar to flame atomization except that the flame is replaced by an electrically heated closed graphite tube