The lab started off by measuring critical materials for the lab: the mass of an an empty 100 mL beaker, mass of beaker and copper chloride together(52.30 g), and the mass of three iron nails(2.73 g). The goal of this experiment is to determine the number of moles of copper and iron that would be produced in the reaction of iron and copper(II) chloride, the ratio of moles of iron to moles of copper, and the percent yield of copper produced. 2.00 grams of copper(II) chloride was added in the beaker to mix with 15 mL of distilled water. Then, three dry nails are placed in the copper(II) chloride solution for approximately 25 minutes. The three nails have to be scraped clean by sandpaper to make the surface of the nail shiny; if the nails are not clean, then some unknown substances might accidentally mix into the reaction and cause variations of the result.
Synthesis of Triphenylmethanol Using the Grignard Reaction and Acid Workup Amanda Sokol Partner: Jack Platacz TA: Edgar Reyes Cruz Lab: Tuesday, 1:40 - 4:30 PM PSH 334 March 17, 2023 Abstract: The purpose of this experiment was to synthesize pure triphenylmethanol by preparing and performing the Grignard reaction followed by an acid workup step. The two-week process combined various techniques used in lab this semester thus far with some new techniques; the first week involved making the Grignard reagent and its reaction with Benzophenone, while the second week consisted of hydrolysis as well as extraction and purification of the product through recrystallization. The solid product was also characterized through melting point and infrared spectroscopy.
The type that ferments acid would ferment a variety of acids like lactic or acetic
Tyler White CHEM151LL 32658 04/01/2018 Different Types Chemical Reaction Types and Equations Purpose: The purpose of this lab experiment is to examine different types of chemical reactions such as Decomposition reaction, Synthesis reactions, Combustion reactions, and different Chemical equations. The experiments were conducted online using Late Nite Labs. Materials: Because the experiments were conducted online there wasn’t any physical use of materials, only digital ones, for these labs to be performed. Only the registration for the website was needed to perform these online labs, as well as a desktop computer.
An alkali is a soluble base which has a PH between 7 and 14. Including ammonia, they release oh- ions in solution. (chemteam.info,n.d.) Every base has a conjugate acid. The hydroxides released from bases accept protons released from
The human body consists of enzymes which allow foods to be broken down and enable organisms to build chemical substances such as other proteins, carbohydrates and fats that are necessary for life. This experiment will be testing the enzymatic reactions with toothpicks. This experiment depicts the process when a substrate binds with an enzyme. However, only a specific substrate can attach to a specific enzyme. This allows the substrate to attach to the enzyme and then disconnect the enzyme overall causing the substrate to break in two.
Introduction The experiments in this lab each involved a Diels-Alder reaction. A Diels-Alder reaction is a one-step reaction between a conjugated diene and a dienophile. The Diels-Alder reaction is exothermic. In the reaction, the bonding electrons rotate to form carbon-carbon bonds which then create a cyclohexane ring product.
An acid is a substance that donates hydrogen ions. A base is a substance that accepts hydrogen ions. The Ph scale is a scale based on how acidic something is the lower the Ph the higher the acidity is but the higher the ph the lower the acidity it is. In order to test pH you can use pH strips or pH liquid which in terms will change the substances color determining its pH.The range for the pH scale is 0-14, the lower the number is the more acidic it is, the higher the more base it is. Rain is normally acidic due to that Carbon Dioxide in the air dissolves in raindrops, giving them a pH between 5 and 6.
A pH scale measures how basic or acidic a liquid is. The numbers tell you how acidic or basic the liquid is. The numbers go from 0-14. Acids are found from 0-7 and bases are found from 7-14. Water is right in the middle of the pH scale, its at 7 pH. Three theories that outline the definition of a acid or a base
Strong acids separate perfectly, but weak acids barely separate in a water solution. When an acid and a base join together, they form something called a neutralization reaction. It can be tricky to tell acids and bases apart by looking at them, so instead, you can tell them apart by tasting or touching them. Only scientists should test them because they could give you a bad chemical burn. Acids usually taste sour and feel very dry (Learn Key Acids and Bases Definitions).
Despite the fact that there might be many sorts of particles in an answer, pH concentrates on groupings of hydrogen particles (H+) and hydroxide particles (OH-). The scale measures values from 0 as far as possible up to 14. Refined water is 7 (ideal in the center). Acids are found in the vicinity of 0 and 7. Bases are from 7 to 14.
Since almost all chemistry is done in water, the fact that this limits the Bronsted-Lowry definition is of little practical consequence. The Lewis definitions of acid and base do not have the constraints that the Bronsted-Lowry theory does and, as we shall see, many more reactions were seen to be acid base in nature using the Lewis definition than when using the Bronsted-Lowry
pH is a determined value based on a defined scale. This scale ranges from 1-14. The lower the number is the more acidic the water is, and the higher the number the more basic it is. If water or a substance has a pH of 7, then it is considered neutral. Both, natural and man-made factors can change pH levels in water and other substances.
Acids are proton donors in chemical reactions which increase the number of hydrogen ions in a solution while bases are proton acceptors in reactions which reduce the number of hydrogen ions in a solution. Therefore, an acidic solution has more hydrogen ions than a basic solution; and basic solution has more hydroxide ions than an acidic solution. Acid substances taste sour. They have a pH lower than 7 and turns blue litmus paper into red. Meanwhile, bases are slippery and taste bitter.
Very strong acids will burn if they touch your skin and can even destroy metals. Acid rain
