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Lab report on chemical reactions
Investigating chemical reactions lab report
Investigating chemical reactions lab report
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Abstract: The purpose of this experiment was to identify given Unknown White Compound by conducting various test and learning how to use lab techniques. Tests that are used during this experiment were a flame test, ion test, pH test, and conductivity test. The results drawn from these tests confirmed the identity of the Unknown White Compound to be sodium acetate (NaC2H3O2) because there were no presence of ions and sodium has a strong persistent orange color. The compound then will be synthesized with the compounds Na2CO3 and HC2H3O2 to find percent yield.
As the compound was reacting, the aluminum pieces were also dissolving, with only a few pieces left inside. The process of the second reaction included the adding of a new substance which consisted of sulfuric acid. The sulfuric acid along with potassium aluminum hydroxide, was yielded to produce aluminum hydroxide, potassium sulfate, and water. This reaction was both a precipitation reaction and an acid-base reaction. Once the sulfuric acid was added, the reaction became very chunky.
Procedures In this experiment, an unknown mixture was given, that contained both sodium bicarbonate(NaHCO3) and sodium chloride(NaCl). The purpose of this experiment was to find the percent (%) composition of the sodium bicarbonate and sodium chloride in the unknown mixture. Hydrochloric acid(HCl) and a scale were materials that were also used during the lab.
The water that was used in the experiment was from a pond that does not have any chemicals put into
Tommy Xu Malik P4 Crush the Can Experiment Write-up In this lab, we did an experiment in which an aluminum can was heated up. Inside the aluminum can, contained water and we waited for the water to boil. After the water started to boil, we took tongs and flipped the can upside down into a pool of cold water. The can, as a result, contracted and crushed itself.
I will have three cups of water each with cold, room temperature, and hot water respectively. 2. I will set the said cups on a white piece of paper, in order to be able to tell the exact moment that the Kool-Aid powder is completely dissolved. 3. I will write cold room temperature, and hot in front of the cups respectively in order to be able to identify the cups.
Once the water was poured into cup D, there was a small amount of bubbling that occurred. The chalk pieces dissolved slightly in the water because the water appeared to have a slight blue color to it. Cup E only contained chalk and served as my control or reference for the original appearance of the
If the red piece of paper stayed red and the blue piece of paper turned red, it was safe to say that the liquid was an acid. If the slips of litmus paper turned blue,
I noticed that all 3 different substances provided had a different density. When I put about a ½ inch of the solution “H” it was very thick almost like a jelly consistency. In addition we added another unknown solution “M” into the same test tube that contained the substance “H” we observed that the substance slinked to the bottom of substance “H” and it started creating its own layer. The two layers of solution both did not mix together and was separated by some type of density suspension. Furthermore we introduced another unknown substance “G” This was the densest liquid sinking to the bottom.
Then they turned into gold and a little rainbow because they were waved through the Bunsen burner. An example I can think of relating to this would be colored water. If I want red water all I have to do is add red food coloring to get red water.
The cooled mixture was funneled through, and the solids remained on the top. After being washed by iced water, the crude material was observed and stored for later
The purpose of this experiment was to determine whether two liquids were the same. The purpose was also to determine whether the liquids can be told apart by how they look and to figure out how to definitively tell them apart. The individual results were that Liquid I had a density of 1.3g/cm³ and Liquid II had a density of 1g/cm³. The class results in numbers were deemed inconclusive, but the graph shows that these liquids are two different substances due to their different densities. Despite their different densities, it was deemed after class discussion that the liquids were the same substance.
In this experiment, groups were given two different unidentified substances with the goal of being able to figure out what chemical each substance was. Unidentified substance “2” was proven to be Tin (II) Chloride and the Unidentified substance “4” turned out to be Sodium Chloride. The conclusion that substance “2” was Tin (II) chloride could be proven due to the fact that it reacted with Zinc and Sodium Hydroxide. When Tin (II) chloride reacted with Zinc, it began bubbling. This occurred because there was a single replacement reaction between Tin (II) Chloride and Zinc.
This particular film is based on the homonymous, Akutagawa- Award winning novel, by Hitomi Kanehara. Lui is the archetype of the trendy girl. She dresses only with branded clothes; she always wears make-up and has an elaborate manicure. However, in terms of mindset, she differs from the similar looking girls, primarily due to her peculiar taste in men.
The experiment process was for the students to inquire about the reaction of the chemicals when mixing them. The materials were, a jar, a spoon, baking soda, dish soap and vinegar. The teacher wanted to demonstrate the chemical change to the whole class. So the students observed the materials first, then the teacher assisted the students to combine the materials. While the chemicals were reacting, the teacher was asking open-ended questions.
