There are a couple different ways to determine the percent composition of baking soda. The most common ways to find this percent composition are through titrations and thermal gravimetric analysis. When and if the NaHCO3 sample is found to be pure, these chemists must have a way to determine which salts are present. The best way to determine what the sample contains is by emission analysis. The first way to find the percent sample of baking soda is titration.
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.
For example, when baker’s make dough for bread, they use yeast to make the dough rise and become bigger, fluffier and softer. If the baker would have just made the dough without yeast, the bread would be much harder and flat. Next, baking soda and baking powder are similar and can be substituted for each other. These two leavening agents are very important in a lot of baking. Baking soda has an acid content that reacts with any of the acids in the recipe and produces carbon dioxide.
The familiar volcano experiment that we all know, mixing baking soda and vinegar, is used to create a bubbly reaction. In the lab, two substances are mixed and create sodium acetate, carbon dioxide, and water (CH3COOH). The purpose of the lab was to predict how much product was made from the chemical reaction, using stoichiometry. If there is a certain amount of baking soda, mixed with 50 mL of vinegar, then the percent yield will be able to be predicted. The percent yield gained was calculated from the amount that was recovered from the experiment.
Computer Additivity of Heats of Reaction: Hess’s Law 18 (1) Solid sodium hydroxide dissolves in water to form an aqueous solution of ions. (2) Solid sodium hydroxide reacts with aqueous hydrochloric acid to form water and an aqueous solution of sodium chloride. NaOH(s) + H+(aq) ) + Cl–(aq) → H2O(l) + Na+(aq) + Cl–(aq) ∆H2 = ? OBJECTIVES • • • • In this experiment, you will Combine equations for two reactions to obtain the equation for a third reaction. Use a calorimeter to measure the temperature change in each of three reactions.
Once the chemicals had been organized I then place 2 drops of the first chemical and 2 drops of the second chemical into the allotted well. Once 2 drops of each chemical were placed in the well I stirred the mixture with a toothpick and observed the mixture. The observations of the various combinations were then noted. The following combinations took place in the experiment. NaHCO3 (sodium bicarbonate - baking soda) and HCl (hydrochloric acid).
Observing Changes – Materials & Procedures Materials Water Copper (II) sulphate (Powder) Copper (II) sulphate solution Iron nail Sodium carbonate Hydrochloric acid Magnesium ribbon Flame (candle) Sugar Aluminum foil Test tubes Test tube rack Tongs Medicine dropper Spoons Beakers Safety goggles Scoopulas Procedures Water and Copper (II) Sulphate Procedure 1. Add a small amount of solid copper (II) sulphate to a test tube with a scoopula. Record the physical properties. 2. Write a hypothesis on what you think will happen when water is added.
Kool-Aid Play dough (Nonedible) This is a super fast and easy recipe. This recipe is excellent if you don’t have a stove or microwave. I just boil the water in an electric kettle. With any of the Kool-Aid recipes the dough will be the color of the Kool-Aid mix and will smell like the Kool-Aid mix. If this play dough gets sticky after a period of non-use, I just add flour and knead until its back to good condition
Brief Case: Reliance Baking Soda Situation Analysis: Reliance Baking Soda is an established mature product that is common in households. The product is sold through several types of retailers and is often sold through promotions at both the consumer and trade level. As the year 2008 quickly approaches the domestic brand director is tasked to increase profits by 10% before SGA, overhead, and taxes in order to fund the launch of two new high priority products by 2008. Problem Definition: Baking soda is a boring product that has low turnover. Furthermore the brand has the current advertising campaign emphasizing on different ways to use baking soda can be assumed to not be very effective since advertising recollection is low.
The Active dried yeast is a type of original all-natural yeast that has been used by generations of bread bakers. The yeast activity may decrease if it comes into direct contact with salt or sugar. When all ingredients are mixed together, the yeast will converts simple sugars into carbon dioxide, alcohol and water. The CO2 expands in the dough to produce gaseous bubbles. All these bubbles cause the bread to rise.