Potassium hydroxide

and a base react to produce salt and water (H2O) (The FreeDictionary.com,2017). The H+(q) ions from an acid react with the OH‾ ions from an alkali. The equation for this reaction is: H+(aq)+OH‾(aq)=H2O(l). For example, hydrochloric acid and sodium hydroxide solution react with each other and form water and sodium chloride solution. The acid consists of H+ ions and Cl‾ ions, and the alkali contains Na+ ions and OH‾ ions. The H+ ions and OH‾ ions create water, and the Na+ ions and Cl‾ ions create sodium

Step #1: Write the oxidation number of each element. Step #2: Write the half- reaction. In this case, there are three elements involved. The chlorine, Cl, did not change its oxidation number in the reactant to product. That’s why chlorine is called the spectator ion. Mg0  Mg+2 (Oxidation Half- Reaction) H+1 H20 (Reduction Half- Reaction) Step #3: Balance the atoms. Mg0  Mg+2 (Oxidation Half- Reaction) 2H+1 H20 (Reduction Half- Reaction) Step #4: Balance the charges. We can’t cancel out the number

Purpose: Brass is a metal alloy composed of different metals, primarily copper, iron, and zinc. However, the amount of copper in brass affects many of its characteristics, including brass’ color, color, strength and so on. To find out the amount of copper in brass, simple technique can be employed, called spectroscopy. Spectroscopy involves viewing the amount of electromagnetic radiation absorbed by a substance, which can let one determine the concentration of an element that composes that substance

2-methyle pentane 99.9%, acetone, hydrochloric acid and 1-propanol 99.9% were bought from Fisher Scientific Company. Bi2O3 99%, SnCl2 99%, Na2S 99.5% , Na2SO4 99.9%, methylene blue 99.9%, and sodium lauryl sulphate 99.9% were purchased from Aldrich-Sigma. The composition of nanoemulsion was 41.67% water, 41.67% oil phase (2-methyle pentane and 1-propanol) and 16.66% surfactant. Bi3+ and Sn2+ ions were dissolved in water phase. Similarly, in separated nanoemulsion, S-2 ions were dissolved in water

The purpose of the sludge lab is to separate many substances that Mr. Beaver gave us from each other and possibly identify them. To do this, Shelstie and Abshir will use different techniques such as filtration, distillation, paper chromatography, and more. It is important to know characteristic properties. Characteristic properties are a substance that has the same result and the amount of the substance doesn’t affect it. For example, in distillation, they would need to figure out what substances

PROCEDURE Setting up the experiment: Opened up a tightly closed container containing Sodium bicarbonate, which was kept away at all times from any incompatible substances like acid b. Used a clean scoopula to take out Sodium bicarbonate from the container and measured out 0.2 g, 0.4 g, 0.6 g, 0.8 g and 1 g using a clean electronic balance that was calibrated to grams and set to zero c. Used the scoopula once again to fill five clean 10 mL test tubes with no cracks or contamination

Purpose: The purpose of this lab is to determine the equilibrium constant for FeSCN2+ by measuring the color absorbance of test solutions. These color absorbance values are used to determine unknown concentrations, because they are directly related to each other. These unknown concentrations can be used to find the equilibrium concentrations, which are used to find the equilibrium constant. Procedure: Part 1: Obtain some 0.200M Fe(NO3)3 solution and some 0.00020M KSCN solution. Starting from the

2. Temperature of the Reaction: Oxalic Acid-Potassium Permanganate Reaction System • Obtain 2 sets of 3 150-mm test tubes. Add 1 mL of 0.01 M KMnO4 and 4 mL of 3 M H2SO4 into the 3 test tubes in the first set using a pipet (use safety precautions and do not make any form of skin contact with either

Whether you have a tankless water heater or a standard water heater, they can develop limescale. Limescale causes rock layers to form on the bottom of the tank, which will make the heater run less efficiently. A water heater that has lime buildup commonly make popping or hissing noises. It is possible to remove the limescale by following these tips. Prepare to Remove the Limescale To flush limescale from the water heater, gather: rubber gloves scrub brush adjustable wrench funnel garden hose

The purpose is to convert a piece of copper metal into several copper containing compounds, back to the original elemental form. Procedures: First we added 4 mL of HNO3 into a beaker. After the substance dissolved, distilled water was added until the beaker the beaker was half full. The mixture was then stirred into the distilled water. Add 30 mL of NaOH into the solution, and stir. The solution was then heated slow. As the product was heating slowly it was stirred. A thermoter was placed on a