Alexis Becker Pre-Lab Experiment 7 Avinash Pallagani Investigating Stoichiometry with sodium salts of carbonic acid 4/2/14 A summary of the concepts: The purpose of this lab is to better understand “stoichiometry”. We will be reacting sodium carbonate (NaHCO)3 and sodium carbonate (Na2CO3) with hydrochloric acid to produce sodium chloride‚ water‚ and carbon dioxide. The balanced chemical reaction looks like this: NaHCO3 + HCl = NaCl + H2O + CO2 CAUTION: Be especially
Premium Hydrochloric acid Sodium bicarbonate Sodium
Investigating Stoichiometry with Carbonic Acid Salts Problem: Testing the actual yield versus the theoretical yield of NaCl when HCl is titrated into Na2CO3 and NaHCO3. When 0.15g of both NaHCO3 and Na2CO3 are titrated with HCl‚ then 0.165g of NaCl should form from the NaHCO3‚ and 0.104g of NaCl should form from the 0.15g of Na2CO3. Procedure: Weigh 2 samples of 0.15g of dried unknown each‚ and dissolve each into 50mL of distilled water. Add 0.5 to 1mL of bromocresol green indicator until the
Premium Evaporation Water
MEMORANDUM From: To: Subject: Calcium Chloride Best Purchase for Deicing Enclosures: (1) Data Record (2) Data Treatment (3) Environment Impact Research After hours of vigorous examination‚ we have come to the conclusion that calcium chloride (CaCl2) would be the best deicer to use on a naval base over sodium chloride (NaCl) and ethylene glycol (C2H6O2). In order to melt ice‚ deicers lower the freezing point so that the ice melts at lower temperatures. CaCl2 has
Premium Sodium chloride Water Salt
Fishman Period 11 TCA #3 TITLE: Egg Shell Lab OBJECTIVE: To determine and compare the amount of calcium carbonate content of brown and white eggshells. MATERIALS: white and brown eggshells‚ water‚ deionized water‚ beaker‚ pipet‚ flask‚ test tube brush‚ funnel‚ hotplate‚ mortar‚ pestle‚ ethanol‚ HCl‚ phenolphthalein indicator‚ sodium hydroxide PROCEDURE: (Complete for both white and brown eggshells) 1. Get one egg and beaker and bring it to your lab station. 2. Break the egg into a beaker.
Premium Calcium carbonate Sodium hydroxide Water
4.1 & 4.2: General properties of aqueous solutions and Precipitation Reactions: 1. (Brown 4.11) When asked what causes electrolyte solutions to conduct electricity‚ a student responds that it is due to the movement of electrons through the solution. Is the student correct? If not‚ what is the correct response? 2. (Brown 4.15) Specify what ions are present in solution upon dissolving each of the following in water: a. ZnCl2 c. (NH4)2SO4 b. HNO3 d. Ca(OH)2 3. (Brown 4.16 ) Specify
Premium Hydrochloric acid Acetic acid Sulfuric acid
Soda Ash Analysis and Volumetric Analysis of a Carbonate-Bicarbonate Mixture De Guzman‚ Danica Justine R. Department of Chemical Engineering‚ Faculty of Engineering University of Santo Tomas Espana‚ Manila Abstract Titration is a laboratory method in which the endpoint of a reaction is determined quantitatively. In this experiment‚ the amount of soda ash present in a sample was determined and the alkalinity reported as it was titrated using HCl as the titrant. Also‚ the percentage
Premium Acid Carbon dioxide Chemistry
Inorganic-I Lab Manual http://www.uap-bd.edu Department of Pharmacy‚ University of Asia Pacific‚ Bangladesh Fall 2013 Pharm 112 Inorganic Pharmacy-I Lab Course Teacher: Muhammad Credit 1 Shahdaat Bin Sayeed Website: https://sites.google.com/a/uap-bd.edu/sbspharmacy/ Cell: +8801713459747‚ E: shahdaat.pharm@uap-bd.edu Lab attendant: Md. Abul Halim [01727565062] Name of the Experiment: Qualitative analysis of Inorganic compounds/Drugs Lab 1: Principle of identification
Premium Solubility Zinc Iron
Why Is Calcium Chloride Powder Used Extensively As A Bleaching Agent? In simple terms‚ calcium chloride is an inorganic compound having chemical formula CaCl2 (H2O)x where x can be 0‚1‚2‚4 and 6. All the salts produced by calcium chloride powder has a unique characteristic that they are highly soluble in water. This helps in applications where you need to remove snow‚ ice‚ or frost from any surface or even simple dust removal. It can absorb moisture from the surrounding environment‚ which is also
Premium Water Chemistry Sodium chloride
Lithium Carbonate and Bipolar Disorder Lithium is a naturally occurring element that is refined to treat certain psychiatric disorders like bipolar disorder. Lithium is a naturally formed element‚ and can be found in many foods. The element has various forms such as lithium carbonate‚ lithium orotate‚ and lithium aspartate (“The Science and Practice”). The differences in lithium lie within the effects of salt on molecular weight‚ and the percentage of lithium. Lithium carbonate specifically is used
Premium Bipolar disorder Lithium Medicine
Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
Premium Angle of incidence Total internal reflection Geometrical optics