The fuel cell has two platinum electrodes with a porous acid-electrolyte material sandwiched between them. As the exhaled air from the suspect flows past one side of the fuel cell, the platinum oxidizes any alcohol in the air to produce acetic acid, protons and electrons. The electrons flow ...
Step-by-Step Solution:1. Definition of Aqua Regia: Aqua regia is a highly corrosive mixture of two strong acids: hydrochloric acid (HCl) and nitric acid (HNO3). The typical ratio used is 3 parts HCl to 1 pa
be as precise as electronic testers, however. Keep in mind that acid is a caustic substance and must be used with extreme caution. Some acid testers may also be harmful to jewelry. For testing miscellaneous items such as scrap metal or coins, you should use an electronic device with read...
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The flame test is all about thermal energy,electrons, and the energy ofphotons. To conduct a flame test: Clean aplatinumor nichrome wire with acid. Moisten the wire with water. Dip the wire into the solid you're testing, making sue that a sample sticks to the wire. ...
First, the plastic has to be scrupulously cleaned to remove things like dust, dirt, grease, and surface marks. Next, it's etched with acid and treated with a catalyst (a chemical reaction accelerator) to make sure that a coating will stick to its surface. Then it's dipped in a bath ...
(b) Radial-to-bipolar ordering transition induced by the interaction of an amphiphilic block copolymer bearing a terminal folic acid derivative and folate receptors present in KB cancer cells. (c) Schematic representation of the mechanism for the detection of Salmonella enterica using chiral nematic ...
Step-by-Step Solution for Performing a Flame Test1. Gather Materials: - Obtain a non-reactive metal wire (such as platinum or copper). - Collect the metal salt sample you want to test. - Prepare a Bun
In the first stage in the process of making ammonium nitrate to be used as garden fertilizer, ammonia and nitric acid react to give a solution of ammonium nitrate. Ammonia is an alkaline gas. In this first stage, an alkali reacts with an acid. What effect ...
Genuine gold will stand up to your attempt to conduct a nitric acid test at home. Make a tiny mark on the piece of gold to penetrate the surface. Drop a small amount of liquid nitric acid on that scratch and wait for a chemical reaction. Fake gold will immediately turn green where the...