Stretch the mouth of the balloon over the mouth of the bottle then turn the balloon completely upright so that the baking soda inside the balloon pours into the vinegar. Compare the size of this balloon to one expanded with only half the amount of baking soda and vinegar or half the amount of baking soda added to the same amount of vinegar. The reaction between baking soda and vinegar can be followed by analyzing the change in temperature, pH, mass and other parameters as the reaction progresses to
Fill the burette with 0.005mol dm-3 potassium manganate(VII) solution. 6. Pour some of the thyme extract solution into a 250cm3 plastic beaker. 7. Using a measuring cylinder, add 50cm3 of 1.0mol dm-3 sulphuric(VI) acid to the thyme extract in the conical flask.
Cylinder was rinsed with distilled water. * * 2. 2.0 ppm standard: 2.00 mL of 10.0 ppm phosphate solution was placed in a 25 mL graduated cylinder and diluted to exactly the 10 mL mark with distilled water then poured into a plastic cup labeled 2. Cylinder was rinsed with distilled water. * 3.
Add color indicator 4. Obtain a burette and fill it with NaOH 5. Titrate the 10 mL with NaOH until it turns pink 6. Weigh a dry funnel with a filter paper and record the weight 7. Obtain an Erlenmeyer flask that has a vacuum opening and attach the vacuum tube to it 8.
4. Calculate the molarity of the commercial bleach (not diluted) using your answer from step 3 and the M¬1V1 = M2V2 equation. (Use volume of concentrated bleach and total volume of dilute bleach) 5. Assume that the density of the commercial bleach is 1.08g/mL. Calculate the percent by mass of NaClO in the commercial bleach.
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
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.
We are performing the experiment to gain our spots on the team of quality control for the Athenium Baking Soda Company. The purpose of the quality control is to determine the quality and safety of use of the baking soda. The theory behind thermal gravimetric analysis is that when a mixture is heated to a sufficiently high temperature, one component decomposes to form a gaseous compound while the other does not decompose. The mass is measured before and after the heating and stoichiometric ratios are used to determine the percent by mass. The chemical equation to be used is : 2NaHCO3(s) Na2CO3(s) + CO2(g) + H2O(g) In the second part, 1.0 M HCl will be titrated into a solution with a known amount of sodium carbonate (Na2CO3), the pH will be measured as it becomes more acidic and the equivalence point (the point at which HCL and Na2CO3 reach equilibrium) determined.
In school, you probably tried an experiment where you mixed baking soda with vinegar to see it foam. That's what is happening in baking powder. If you look at the ingredients for Alka-Seltzer, you will find that it contains citric acid and sodium bicarbonate (baking soda). When you drop the tablet in water, the acid and the baking soda react -- this produces the fizz. You can think of an Alka-Seltzer tablet as compressed baking powder with a little aspirin mixed in.
• 2, 1/2 cups flour • ½ cup salt • 1 Tbsp Alum • 1 package unsweetened Kool-Aid (6 g Pkg.) • 1 to 2 Tbsp cooking oil • 2 cups boiling water Mix all together and knead well. Gluten-Free Play dough (Nonedible) This too is an excellent recipe. It’s just as good as any regular play dough recipe. It is for children with wheat allergies.