DETERMINATION OF FRUIT ACIDS BY TITRATION AND CALCULATION OF THE SUGAR/ACID RATIO It is the sugar/acid ratio which contributes towards giving many fruits their characteristic flavour and so is an indicator of commercial and organoleptic ripeness. At the beginning of the ripening process the sugar/acid ratio is low‚ because of low sugar content and high fruit acid content‚ this makes the fruit taste sour. During the ripening process the fruit acids are degraded‚ the sugar content increases and
Premium Acid PH indicator PH
Speech-Related Activity: 1-minute Speeches Aims: Practice quick analytical thinking‚ expression of opinions Level: This works best with more advanced students‚ and in smaller groups. Materials: Pre-made topic slips‚ a clock or watch for keeping time. Roles: Each speech requires a speaker and a timekeeper. Procedure: The student to perform the speech randomly selects a faced-down strip of paper containing a topic. The student has a short period of time (3 – 5 seconds)
Premium Time Convenience store Speech
Brain Death Determination When the brain has a lack of oxygen‚ even for a few minutes‚ it could lead to loss of brain functions such as a gradual loss level of consciousness or a complete loss of consciousness causing the person to slip into a coma. In the most profound cases‚ irreversible brain damage and death occurs. Oxygen deficiency can by caused by many things‚ such as; a brain injury‚ fall from height‚ traffic accidents‚ heart failure‚ stroke or some neurological disease. That may cause
Premium Death Brain Blood
chapter. Activity Outcomes: Student will learn how to write Java programs to perform simple calculations‚ they will use Scanner class to obtain input from the console‚ they will know how to use identifiers to name variables‚ constants‚ methods‚ and classes. The use of constants ‚ Java primitive
Premium Computer program Computer software Computer
10/19/2011 Akruti Patel Lab Report #4: Determination of a chemical formula: the empirical formula of Magnesium Oxide 1. Purpose: Determine the empirical formula of magnesium oxide from the percent composition (this can found using the Analytical Method and the Synthesis Method). 2. Introduction: In the late eighteenth century‚ combustion has been studied extensively. In fact‚ according to Steven and Susan Zumdahl‚ Antoine Lavoisier‚ a French Chemist‚ performed thousands of combustion experiments
Premium Oxygen Magnesium Chemistry
|Formal Report 1 | | | |Experiment Number 3 | | | |Chem201L | | Determination of an Unknown Compound
Premium Chemical compound Chemistry Melting point
CH 127 – Chem 2 Lab Determination of an Equilibrium constant Goals The purpose of this experiment is to determine the equilibrium constant for the reaction Fe3+(aq) + HSCN(aq) –>FeSCN2+(aq) + H+(aq). The equilibrium constant expression Kc for Reaction is kc=FeSCN2+[H+]Fe3++[HSCN] Procedure *Preparation of the Beer’s law plot Prepare five solutions of FeSCN2+(aq) of known concentrations between 1x10-5M and 1x10-4M by diluting various volumes of 4.62x10-4 HSCN. Calculate the Final concentration
Premium Concentration Chemical equilibrium Chemistry
Lab #1: Melting Points of Organic Compounds Report Form May 15‚ 2014 1. A “Melting Point Range” refers to the range of temperature at which a solid melts into its liquid state. 2. Pure compounds have narrow or ‘sharp’ melting point ranges‚ 1°C or less if the compound is very pure. A less pure compound exhibits a broader melting point range‚ between 3°C to 10°C as well as a depressed or lower range. 3. Crushing the sample allows for greater surface area-to-volume ratio of the powder‚ this
Premium Temperature Thermodynamics Heat
Germ Line Control of female Sex Determination in Zebrafish In order to identify the sex of a developing embryo‚ many scientists have studied this process called sex determination that allows them to have better understandings on how sex is being determined in either vertebrates or invertebrates. Sex determination is normally determined genetically; however‚ other factors can contribute to its determination. There are numerous determinants that control sex determination‚ but the most important are sex
Premium Gene Sex Genetics
pth dFE046245 ISSN 0335-3931 European standard French standard Steels NF EN ISO 2639 February 2003 Classification index: A 04-202 ICS: 77.040.99 Determination and verification of the depth of carburized and hardened cases F : Acier — Détermination et vérification de la profondeur de cémentation D : Stahl — Bestimmung und Prüfung der Einsatzhärtungstiefe © AFNOR 2003 — All rights reserved French standard approved by decision of the Director General of AFNOR on January 20
Premium Rockwell scale Hardness