Flameless Aa Vs Graphite Furnace

2. Used a test tube clamp to held the test tube and gently heated the tube in a laboratory burner flame for about 30 seconds.

In the introduction of the experiment it stated that, “Chemists can only obtain a melting range of a 2 - 3°C accuracy. This is usually sufficient for most uses of the melting point.” This statement assures that the melting point results obtained from this experiment are good results. Part 1 and 2 results were a little higher than the supposed melting range, but knowing that only a 2-3°C accuracy can only be obtained these are good

the test tube. On the temperature graph, the highest point was at 27ºC, which means that

Figure 3. Diagrammic representation of how the apparatus should be set up to heat the de-ionized water, in which carbon dioxide gas would be dissolved afterwards in a gas syringe, to a selected temperature with the aid of temperature measurement by thermometer

Take a small piece of steel wool keeping it loosely compact. Hold with tongs and light the wool with the Bunsen burner until there is a glow then immediately place into the beaker of pure oxygen.

2. Read and record the temperature of the gas using the thermometer attached to the container.

Place the test tube containing cold water in a test tube clamp and hold the test tube above the burning alcohol. Observe the outside of the test tube for evidence of product formation.

A more detailed explanation of procedures can be found in the lab packet.1 To summarize, samples of benzoic acid and naphthalene were combusted using the Parr 1341 Calorimeter with a Parr oxygen bomb. A massed benzoic acid pellet was placed onto the center of the combustion pan and 10 cm of nickel alloy fuse wire was massed and then threaded through both electrodes on the head of the bomb so that it lay firmly against the acid pellet. 1mL of distilled water was then placed in the bottom of the bomb in order to ensure that all the water produced by the

8. Crush crystals into powder with a stirring rod and use a melting point device to determine the melting point of your active ingredient.

Cover with lid and place on the heat of the stove. Bring to boiling point, reduce

You want to first open and organized you tools that came in the cool blue light experiment kit that can be found here (http://www.scientificsonline.com/product/cool-blue-light-experiment-kit). You then gather your different temperatures of water. You can use a Keurig brewed hot water setting for boiling hot water which came out to a temperature of 210 °F or more. Then get a bottle of water that is room temperature around 72 °F. Now take took some ice cubes and put them in a cup while I cont setting up my supplies. you now want to set the cups up for the chemicals and label which cup would be cold, hot, and warm. The kit came with these tiny spoons to use in order to get the chemicals out. You will need to use 1 spoonful of luminol and perborate

Baking Soda - This common ingredient, when heated produces Carbon Dioxide gas. Since the fire would be getting carbon dioxide, the amount of oxygen the fire would be receiving would be limited resulting in the fire being stopped as oxygen is one thing that is required for combustion.

All fireplaces need an annual inspection to ensure they run perfectly but Ventless Gas Fireplaces burn cleaner and have very little maintenance compared to messy wood.

The purpose of the furnace ignitor is to automatically light the pilot or burners. Your ignitor may work by spark ignition or by hot surface ignition. Hot surface ignition is the most common method when it comes to newer gas furnaces. Hot surface ignition uses a ceramic ignitor. Power supplied to your furnace than

Oven drying: common for sample prep, 110 C for water removal, use loose covers to prevent contamination from dust