Once you increased the temperature you could see the molecules move more vigorously. Acetic acid effect—5%, 2.5%, 0% The bubbles produced in the vinegar are different than those produced in the glasses with more water. The two glasses that contained vinegar produced a vigorous bubbles, but became frothy, and cloudy. ANALYSIS AND QUESTIONS: 1.…
The Effect of Temperatures on Rate of Reaction of Alka-Seltzer Introduction: A. Background This particular experiment consists of a purpose of finding out the effect of various temperatures on the rate of reaction of the Alka-Seltzer tablets. Alka-Seltzer is a medical drug that acts as a pain reliever or an antacid, which helps neutralize stomach acidity, such as heartburn. Alka-Seltzer is a form of a baking soda which is also known as sodium bicarbonate, (NaHCO₃). When sodium bicarbonate (NaHCO₃) comes in contact with water (H2O), the compound dissociates into two different ions: sodium (Na+) and bicarbonate (HCO₃-) ions.…
The change in the reaction mixture occurred when the temperature got to a 100˚C. The mixture had turned a very dark color. The mixture started out blue and it changed to an almost black color. The mixture was continued to heat for an additional 5 minutes and then it was cooled down to room temperature. When the reaction mixture was cooled, solids started to form on the sides of the beaker.…
Key concepts Chemistry Chemical reaction Acids Bases Water Introduction Have you ever had a refreshing bath with bubbles or bath salts? What if you could use chemistry to create a bath-time treat that incorporated both fizzing bubbles and soothing salts? Such a combination does exist, and it's called a bath bomb. If you have never experienced one, these "bombs" become fizzy when they touch the water.…
In this lab, the percent composition of each component in the mixture was calculated. The mixture contained NaCO, CaCO3, and sand. NaCO or salt had a physical change when it completely dissolved in water. A chemical change occurred when hydrochloric acid was added to CaCO3 or chalk because the mixture changed to a yellow green color. In order to obtain the percent composition, a filtration system was used to separate the sand from the liquid, by straining the solid with the use of filter paper.…
Before mixing, the total mass was 3.2 grams. After mixing the two substances, the combination of the two liquids ended up looking very powdery. We then mixed both combined solutions together in a centrifuge, and when they were mixed, one tube turned red, while the other tube became clear. There was also a white powder at the bottom of the clear tube. This reaction is a chemical change.…
Chemical reaction is changing their properties and reagents concentration which create new products. There is a titration method to check the kinetic reaction. For example, of chemical equation as aA + bB → cC+ dD This equation describes the general term in rate of concentration. A and B is the reactant and C and D is the product thus, expresses the proportion.…
So it's not really a chemical reaction as much as a physical release of small amounts of trapped gas. The soda, a carbonated liquid to begin with, contains lots of pressurized C02. Pop Rocks are pressurized with carbon dioxide, creating tiny pockets of bubbles inside the candy. When the soda is at a higher pressure, it can hold more carbon dioxide. When the soda is opened to the…
Explain. During the industrial synthesis of methanol (CH3OH), carbon monoxide (CO) reacts with hydrogen gas. For methanol, ΔH= -100.4 kJ/mol. Write the balanced chemical equation for this reaction.…
Overview: A fair test is conducted to determine how much bicarb soda is needed to extinguish a tea-light candle when mixed with vinegar. When bicarb soda and vinegar are mixed together a chemical reaction is made thus extinguishing a lit candle, the candle is blown out as bicarb soda and vinegar creates carbon dioxide. A candle needs oxygen to burn, however when carbon dioxide is poured above the flame the candle will quickly be put out, as carbon dioxide is a heavier gas. Aim: To determine how much bicarb soda is needed to extinguish a tea-light candle when mixed with vinegar…
The Crest company could co-brand with Arm and Hammer baking soda. The benefit to this would be creating a toothpaste that can help with whitening. A benefit to licensing this product, is people know the Arm and Hammer brand, and they know baking soda helps with whitening. I believe this product is a good fit to have as a mixed brand, because there are other products that can help with teeth cleaning and whitening. Crest toothpaste could help with introducing a new product by brand extension, because Crest is a well known…
Update: Just do baking soda. Baking soda is a base and lemon juice is an acid, which means chemical reaction. And I found it bleaches your armpit hair (if you have any) orange. (Maybe if you mix it before and then apply it to your skin you won't have a problem?) Anyway, ya, just do baking soda.…
Chemical leavening is when leavening gases are brought out into the batter/ dough and trapped; causes air bubbles to expand, sparked off by the heat in the oven and causing the whole thing to rise. The two most commonly used ones today are: baking soda and baking powder. They sound almost the same so they must be the same right? However that isn’t true.…
In a chemical equation, there are the reactants, which is the part that is changed, and the products, which is what is left over. The reactant side and the product side must have the same quantity of each element. If they do not, the equation must be balanced by using coefficients. Mole ratios can be found by using these coefficients. Mole ratios are conversion factors and can be used to found the amounts of the reactants and the products in a chemical reaction.…
Experiment 1. Title: How does the amount of baking soda affect its reaction with vinegar? Aim: To find out how different amounts of baking soda (soda bicarbonate) affect the length of its chemical reaction with vinegar (acetic acid).…