alka seltzer lab essay

The Most Efficient Antacid to Neutralize Stomach Acid Author: Masaru Sakata March 9, 2017 Lab Partners: Zeyad Naseer Aldeen, Jaysa Medina, Victor Guzman, and Rumla Zaman TA: Tianyu Zheng Chemistry Lab Abstract: An antacid is a substance which neutralizes stomach acidity.2 With this information, the main goal of the entirety of this experiment is to determine which antacid is most effective in neutralizing stomach acid. The experiment’s way of measuring the effectiveness of each antacid is examined

Name: Soo Jin Park Date: 03/30/2015 Exp 4: Properties of Gases Lab Section: 73426 Data Tables: Hydrogen Step B: Describe the zinc and acid reaction. As placing a small piece of Zn(mossy zinc) metal into the test tube containing the diluted HCI(Hydrochloric Acid) solution, gas bubbles rose from the solution slowly at the beginning and vigorously in process of time. As this reaction continued for a long time, transparent solution turned into white opaque color and black precipitates were formed

The different methods of measuring acids and bases in a solution By Starsky Intro to Biology September 26, 2011 Lab Partners: Kristen, Tania and Betty Introduction When using different methods to measure pH levels there are some tools that can be useful. Some more than others but by putting into action the different methods it may determine which tools will work best and give the best

experiment was to test and observe the physical and chemical properties of gases, and to use these properties to identify these gases when they are encountered. Procedure: Create a data table similar to that in the lab assistant to record your observations. Gather the following lab equipment: Goggles, test tubes, 24 well plate, Gas assembly with copper and plastic tubing and a #00 stopper, short stem pipet, rubber stopper #00 with one hole and a pipet tip with plastic gas delivery tube, 2 small

the particle • The rate of reaction increases when the surface area is larger • A smaller particle has a greater surface area than a large particle. Method/procedure As stated in the practical guide Safety and Green chemistry assessment 1- Wear lab coats. To avoid the clothes from disturbing the process of the experiment. 2- Use safety glasses. To prevent the chemicals from entering or irritating the eye. 3- Wear gloves. This could prevent the hydrochloric acid from having any direct contact to

The test tube was then filled ¼ with tap water. Next, ¼ tab of Alka-Seltzer was dropped into the test tube and sealed with the rubber stopper of the Anesthetizing Device. The glass pipette was then slid into the test tube to expose the flies to carbon dioxide. Deprived of oxygen, the flies then fell asleep for about 5

Every reaction that occurred during this lab was a double replacement reaction, or a chemical reaction in which two aqueous compounds react with each other and result in two different compounds where one is either a solid precipitate, a liquid (water), or a gas. A precipitate in this case is a solid that exits the aqueous solution during the chemical reaction because it is too heavy to stay in the solution. Clear signs of a chemical reaction occurring is the formation of a precipitate, especially

the classroom. During critical lessons that provided the notes, equations, and practice that would get the students to meet the goal, 7 students were absent. Also, 6 students were absent during the Percent Composition of Carbon Dioxide in Alka-Seltzer® tablets lab—which provided extra help and practice to meet the goals. From the

Objective The objective of this lab is to determine the pH of common household items. Introduction This experiment involved determining if the liquids tested were acidic, a basic or neutral. An acid is a chemical substance that turns litmus paper red, neutralizes alkalis, and dissolves metals. Bases are chemical substances that change litmus paper blue, react with acids to form salts and encourage certain chemical reactions. Acids produce H+ ions in aqueous solutions while bases accept H+ ions

pH and Buffers 10/1-10/2 Samuel Pellot Masaki Aerts, John McAndrew, Julien Panepinto 10/13/15 Biology 2 Saint Peter’s Prep Purpose The purpose of the lab was to find out how buffers work and the buffering capacities of different buffering solutions. Hypothesis If an acid is added to a substance then the pH level will drop because you are adding more acid (HCl) to the solute becomes more acidic. While adding a base to a substance will cause the pH level to rise