There are several different ways to create baking soda, but the Athenium Baking Soda Company chose to make baking soda by reacting ammonium hydrogen carbonate with a highly concentrated aqueous solution of NaCl or brine. An equation to demonstrate this process is: NH4HCO3(S) + NaCl (aq) → NaHCO3 (aq) +NH4Cl(aq) This salt-water concentration not only contains a high concentration of sodium chloride, but also concentrations of calcium chloride, potassium chloride, and lithium chloride. Because of this fact residue of NH4HCO3 will possibly contain CaCl2, KCl, and LiCl. These contaminants of the brine will provide flaws to the baking soda, and thus production must be checked often by chemists who analyze the baking soda for lifespan, composition, purity, and quality. There are a couple different ways to determine the percent composition of baking soda.
Quality Control for the Athenium Baking Soda Company A Self-Directed Experiment 16 April 2012 INTRODUCTION The Athenium Baking Soda Company has begun producing baking soda (sodium bicarbonate, or sodium hydrogen carbonate). NH4HCO3 + NaCl ==> NaHCO3 + NH4Cl Due to the high concentration of the brine solution that is used to generate the product, contaminants are often present in the finished product as chloride compounds. The contaminants may be detected when the finished baking soda product is dried and filtered. PURPOSE: In this experiment, we will be employing quality control by analyzing the composition and purity of the contaminated baking soda samples. To perform this experiment, we will utilize emission spectra, titrations, and thermal gravimetric analysis, using knowledge from Experiments 10, 4, Titrations of Na2CO3 and NAHCO3 by HCl (hydrochloric acid) will be performed to determine the concentration of HCl, as well as the number of moles of HCl present within the sample of baking soda.
Quality Control for Athenium Baking Soda Company Introduction In this experiment, we will be using thermal gravimetric analysis (experiment 4) and HCL titration (experiment 12) to determine the percentage of NaHCO3 (baking soda) in the sample given. We will also be using emission analysis for group IA and IIA salts (experiment 10) to determine the impurities present. The purpose of this experiment is to determine the purity of a sample of baking soda given us by the Athenium Baking Soda Company. We will First determine the percentage of baking soda and then determine whether it contains particulates of CaCl2, LiCl, of KCl for the purpose of seeing whether it is pure and useable or not (the quality of the baking soda). We are performing the experiment to gain our spots on the team of quality control for the Athenium Baking Soda Company.
Quality Control for the Athenium Baking Soda Company April 16, 2012 Introduction: In a sample of baking soda, determine the percent by mass of NaHCO3. Also, determine if any chemical impurities are present, the chemical nature of the impurities, and the quantity of each present. Baking soda, also known as sodium hydrogen carbonate or sodium bicarbonate (NaHCO3), is a naturally occurring compound with a wide range of uses. The diverse uses of baking soda include its presence in cleaning products, human food and beverages, animal food, and food processing, pharmaceuticals, chemical and industrial processes, water treatment, fire extinguishers, and more (chemicalland21). Because baking soda is a natural compound, using it in these products can replace potentially environmentally harmful products.
You can think of an Alka-Seltzer tablet as compressed baking powder with a little aspirin mixed in. Materials: |3 Clear glasses |6 Alka-Seltzer tablets |Mortar and pestle | |Stopwatch | | | Hypothesis: I think _____________________________________________________ Because______________________________________________________ Identify the variables:
One teaspoon of salt and one teaspoon of baking soda were put in two separate transparent glasses of water and then the time of dissolving of each substance were calculated. The results showed that the baking soda dissolves better in water than the salt. My hypothesis proved to be correct. To improve this study I would use a type of salt
Sucrose is used to sweeten foods, and provide short term energy. In sodas such as the orange soda and clear soda used during this lab, the sugar is used to sweeten the drink. Density can be used in order to find the sugar concentration in a particular solution. Density is known as the amount of mass that will fit into a certain volume. For this lab, the density of water will be 1 gram/cubic centimeter.
NaHCO3 (sodium bicarbonate - baking soda) and HCl (hydrochloric acid). The bubbles formed are carbon dioxide. HCl (hydrochloric acid) and BTB (bromothymol blue). Bromothymol blue is one of many acid-base indicators. What color do you observe?
Objective The purpose of this experiment was to become familiar with the ability to reproduce an experiment several times. Experimental Materials 1 x Magnetic Stirring Bar (yellow) 2 x 100 mL Flask 8 x 50 mL Erlenmeyer flask Magnetic Hotplate Glass Stirring rod Distilled water Pipet (with Pump handle) Starch 0.20M Ammonium Persulfate (NH4)2S2O8 0.20M Ammonium Sulfate (NH4)2S2O4 0.20M Potassium Nitrate (KNO3) 0.20M Potassium Iodide (KI) 1.2 x 10-2M Sodium Thiosulfate (Na2S2O3) Experimental Method 1. All materials were obtained from the classroom. 2. The flasks were thoroughly cleaned with distilled water.
Discussion & Conclusion In this experiment we learned how to synthesize the cyclohexene by dehydration of cyclohexanol. We procedure the first step where we have to mix the components. Then we heat the R.B.F with a fractionating column, distilled water. Then we obtained the layers, and we transferred the organic layer to a small, dry Erlenmeyer flask. We added anhydrous Sodium Sulfate as a drying agent.