Above is a table showing the experiments we performed. For each the given quantity of the substance was placed into a plastic bag and a reaction would occur. Experiment 1 was given to us. After mixing the solid ingredients together, placing the phenol red solution in the bag, squeezing the air out of the bag, and then tilting the bag, so that the phenol red solution could mix into the solids a reaction occurred. The reaction we observed from Experiment 1 was as soon as the Phenol Red hit the baking soda and calcium carbonate the mixture started to fizz and turn orange. Then it turned into a bright yellow color. The bag filled with air and the mixture became very hot. The baking soda appeared to dissolve quickly, but the calcium carbonate dissolved very slowly. After a while, the bubbles calmed down and the mixture cooled down. We decided on our approach to Experiment 2 because we thought it would be easier to change the quantity of Sodium Bicarbonate or Calcium Chloride, then the Red Phenol. We decided to do less of the Calcium Chloride to see if in a smaller quantity it dissolved more. The answer was, yes and the Calcium Chloride dissolved much faster and eventually completely. Other differences between this experiment and the first was there was no heat. It was actually quite cold. There were also less bubbles and the …show more content…
Experiments 3,4, and 5 removed one of the variables. We found in Experiment 3 with Sodium Bicarbonate and the Red Phenol Solution that the reaction was cold, red, and no bubbles or gas was released. In Experiment 4 with Calcium Chloride and Red Phenol the reaction was red, hot, and again no bubbles or gas was released. The Calcium Chloride once again slowly dissolved. Experiment 5 removed the Red Phenol and replaced it with water. We were surprised when the exact same reaction happened as what happened with Experiment 1, minus the color
The experiment was not a success, there was percent yield of 1,423%. With a percent yield that is relatively high at 1,423% did not conclude a successful experiment, because impurities added to the mass of the actual product. There were many errors in this lab due to the product being transferred on numerous occasions as well, as spillage and splattering of the solution. Overall, learning how to take one product and chemically create something else as well as how working with others effectively turned out to be a
A: The reaction with water and vinegar was the most useful in this experiment. The physical properties were very self explanatory because the texture of the powders was all different expect icing sugar and cornstarch. Also the Ph levels were very similar of six and seven for corn starch and icing sugar respectively. d) Q: How confident do you feel about your identification of the
When it comes to the observation part of forming the experiment as well as after the experiment was done, a lot of groups observed the same things. The most significant observations were we observed the
In the second experiment with the green color, I can safely conclude that the color green in this case is very soluble and we would need longer filter paper, perhaps more time to safely separate the different colors that make up the color green.
Limestone's Reaction With Hydrochloric Acid Planning the experiment. This experiment will show how much limestone fizzes when added to hydrochloric acid. I will gather the gas released from the fizzing and measure how long it takes to gather a certain amount of gas. Burette [IMAGE][IMAGE][IMAGE][IMAGE][IMAGE][IMAGE][IMAGE] The light blue area represents the hydrochloric acid, and the white blobs are the limestone. The grey area is the carbon dioxide released from the HCl and CaCO3 reaction, heading in the direction indicated by the arrows.
The objective of this experiment will be to combine various substances, liquids and metals, and to observe their behavior when they are combined. The types of reactions observed shall determine the nature of these reactions: physical or chemical.
The effect of baking soda and vinegar reacting to the balloon. In this experiment, a scientist will observe how a balloon will inflate by using vinegar and baking soda. Both Vinegar and baking soda react to make the balloon blow up by using a different amount of both ingredients. The amount of baking soda and vinegar effecting of the balloon. The independent variable is the amount of vinegar and baking soda.
* It was almost impossible to tell when the Alka-Seltzer tablet had dissolved, each time the experiment was done. This was a huge problem for the experiment as this could have totally caused problems to the experiment. A special type of detector apparatus, which bleeped when the correct amount of Alka-Seltzer tablet dissolved, could improve this, each time the experiment was done.
The experiment should be carried out AWAY from the sunlight. Before beginning the experiment, we need to make sure that the benzene used in the experiment is free of toluene and water. To do this, we must put anhydrous calcium chloride into a flask o...
Our claim that bouncing bubbles is a physical reaction because there was a mixture where no new substance is created, but there is 2 or more compounds making up the mixture. There is no new state of matter, no new color, nor a new smell, did change temperature based on average of all, didn’t produce gas, and didn’t produce light. Also the experiment did not create a gas or produce light. When we put the 10 ml of Dawn dish soap, 30 ml of water, and 1 ml of Glycerine together many things changed that were physical because it is a mixture not a chemical change so our claim is true. The volume is 41 ml so didn’t react to form a new substance or add any volume when mixed them together except for the bubbles when stirred they were created but that can happen without mixing if you have ever washed hands you produce bubbles when you touch the water because the soap reacts with the water to make bubbles which is a physical change because it is just a mixture didn’t change anything really.The smell did not change because the Glycerin and water did not a have a smell while the dish soap did making the mixture smell like that.
Investigate the effect of changing the concentration of hydrochloric acid and the volume of carbon dioxide produced by a reaction between hydrochloric acid and marble chips (calcium carbonate). Chemistry Coursework To investigate the effect of changing the concentration of hydrochloric acid and the volume of carbon dioxide produced by a reaction between hydrochloric acid and marble chips (calcium carbonate) Planning experimental procedures Aim In this coursework I will be investigating to see how the concentration of acid affects the rate of reaction with marble chips. Hypothesis Part 1 I predict that the rate of reaction between the acid and the marble chips (calcium carbonate) will increase as the acid concentration increases. This is because in an acid solution with a greater concentration there are more particles present in the same volume of acid.
Baking soda is used to make a mixture rise and therefore as a base it reacts with an acid to get co2 gas, water and salt. This reaction takes place once the mixture has been mixed properly. The co2 gas bubbles rise in the oven at 80 C and gives a light spongy texture. If you decide to wait after you have mixed the ingredients the mixture may fail to rise and ruin your recipe.
Antacids can fizz and bubble when you put them in water. This is because of the ingredient sodium bicarbonate, also known as baking powder reacts to the water. The other ingredient that is needed to make it fizz is citric acid. These chemicals when combined create carbonic acid. The carbonic acid then produces water and carbon dioxide. This is similar to soda, they both contain carbon dioxide. The f...
If I'm going to mix vinegar and baking soda together, will it be a mixture or a compound? Now, vinegar will be the solvent because it will be the substance that the solute will be dissolving in. Of course, the solute is baking soda, or the substance that will be put inside the larger substance. When I mixed them together, bubbles started forming and rising. What happened? Did a reaction happen? How do we know? Here is the chemical formula of the mixture: NaHCO3 + CH3COOH ----> CO2 + H2O + Na+ + CH3COO-. As you can see, the molecules of the reactants: vinegar and baking soda, are found in the product. This means that the molecules and atoms in the reactants had rearranged and reform to make the new product. The acetic acid in vinegar reacts with the carbon dioxide to form sodium acetate and carbonic acid. The carbonic acid will then go under a decomposition reaction and for carbon dioxide. Since the carbonic acid had went through a reaction and turned into a gas, which leaves the sodium acetate solution. How do we know that carbon dioxide is formed? Well, the bubbles that come out during the reaction are the carbon dioxide escaping the solution as a gas.
Effervescence occurred as carbon dioxide gas has been released which caused bubbling inside the plastic container.