Acid Determination of Vitamin C Tablets and Salt Solutions Chem 1290-016 03-05-2010 ------------------------------------------------- Purpose: The purpose of this lab was to use acid-base titrations to find the mass percent of ascorbic acid in a Vitamin C tablet. A known concentration of sodium hydroxide was used and the value found was compared to the stated amount of ascorbic acid listed on the vitamin container. Also in this lab the acidity of different salt solutions were tested using
Premium PH indicator Base Acid
Madame C. J. Walker was born Sarah Breedlove from Owen and Minerva Breedlove on a cotton plantation. Her parents were recently freed slaves; therefore‚ Sarah‚ the 5th child‚ was free born. In 1875‚ her mother died‚ and her father passed the following year due to unknown causes‚ which made Sarah a 7 year old orphan. Sarah was sent to live with her sister Louvinia and brother-in law. In 1877‚ the three moves to Vicksburg‚ Mississippi where Sarah picked cotton and most likely employed with household
Premium African American
6.1 SOLUTIONS TO CONCEPTS CHAPTER 6 1. Let m = mass of the block From the freebody diagram‚ R – mg = 0 R = mg ...(1) Again ma – R = 0 ma = R = mg (from (1)) a = g 4 = g = 4/g = 4/10 = 0.4 The co-efficient of kinetic friction between the block and the plane is 0.4 2. Due to friction the body will decelerate Let the deceleration be ‘a’ R – mg = 0 R = mg ...(1) ma – R = 0 ma = R = mg (from (1)) a = g = 0.1 × 10 = 1m/s2. Initial velocity u = 10 m/s Final
Premium Friction Force
How is Vitamin C manufactured? Ascorbic Acid Also known as: l-ascorbic acid‚ vitamin C‚ ascorbate A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets‚ and necessary to maintain connective tissue and bone. Its biologically active form‚ vitamin C‚ functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant. http://pubchem.ncbi.nlm.nih.gov/summary/summary
Premium Flavor Food preservation Vitamin C
Importance of the study 1 B. Objectives of the study 2 C. Time and Place of the stud 2 D. Scope and limitations of the study 3 E. Definition of terms 3 II. REVIEW OF RELATED LITERATURE 5 Plant spacing and seedling age: Their Effect to plant growth and development 5 III. METHODOLOGY 7 A. Securing of Seeds 7 B. Locating the Experimental Area 7 C. Seedbed Preparation 7 D. Seeds soaking and incubation
Premium Seed Plant morphology
to nest. C. Army Ants are nomadic and they are always moving. (Transition): After talking about general issues moving into former topics will be beneficial for my audience to understand well and to remember easily. Body I. There are some interesting and special features of ants. A. An ant brain has about 250 000 brain cells. A human brain has 10‚000 million so a colony of 40‚000 ants has collectively the same size brain as a human. B. Ants can lift 20 times their own body weight. C. The average
Premium Ant
Associate Level Material Appendix C JavaScript® Code for Error Handling Read the directions carefully and write JavaScript® code that addresses the requirements. Copy your code directly into this appendix document and post your assignment. 1. Write JavaScript® code that anticipates and handles an error for an expected numeric field. This code is executed on keypress‚ and the entered value is saved for you in a variable called enteredChar. Include the try block of JavaScript® statements needed
Free Programming language Variable Statement
Section C: Depth Study- history GCSE Hemali 10a 7a) Do you think source C was published by a supporter or opponent of the Weimar Government? I think that Source C was published by an opponent of the Weimar Government because all the way through the source; it criticises the Government and says how it lacks authority. This source shows us that the Government made things worse during the invasion and that they were the blame for the inflation. However‚ since it was written by
Premium World War II World War I Historiography
flower. a. Pistils b. calyx c. corolla 2. The ____ are the male parts of a flower. a. Pollen b. stamen c. ovary 3. The stamens have pollen in their anthers which contains the ______. a. Ovules .b. egg cells c. sperm cells 4. ______ is found at the tip of the pistil a. Ovary b. stamen c. style 5. The ______ is the long stem at the pistil. a. Stamen b. ovary c. style 6. Pollination makes _____ in plants possible. a. Sexual reproduction b. asexual reproduction c. photosynthesis 7. The transfer
Premium Seed Pollination Flower
inform the Australian society to help with prevention of the disease? – Page 6 Hepatitis C Timeline – Page 7 Bibliography – Page 8 Overview of Hepatitis C Hepatitis C is a blood-borne virus that causes inflammation of the liver. It is most commonly spread through sharing unsterile
Premium UCI race classifications Scientific method