Lab 5: Osmosis Purpose: The purpose of this lab is to familiarize you with osmosis and‚ specifically‚ what happens to cells when they are exposed to solutions of differing tonicities. Hypothesis: If we add higher concentrations of sugar to the dialysis tubing‚ then the net movement of coffee into the dialysis tubing will increase. Materials scale or balance 24" dialysis tubing 4 transfer pipets sugar scissors rubber bands four coffee cups - they need to be roughly the same size
Premium Water Dialysis Dialysis tubing
Vicente Viloria CHM 130 LL Section 22258 Lab 12: Introduction to pH‚ Household Products and Buffers 12/9/14 Introduction In this experiment the students will be determining the pH of household products along with other solutions using several different indicators as well as a pH meter. The experiment also has the student determining what the buffer solution is in an aqueous solution. The student will also be testing the pH of milk of magnesia and will see how it affects the stomach acid. Lastly
Premium PH Acid PH indicator
Lab Report Title: * Color reaction of starch when mixed with Iodine solution Introduction: Statement: * How would the varying solutions react when introduced with the Iodine solution? Hypothesis: * If a solution is rich in starch then it will react with iodine solution and change to a bluish-black color (looks Brown) Materials: Items: * 8 test tubes‚ pipet‚ iodine‚ onion juice‚ potato juice‚ sucrose solution‚ glucose solution‚ distilled water‚ fructose solution‚ starch solution
Premium Starch Carbohydrate Glucose
1. A saturated fat has one or more double bonds between the carbons in its fatty acid tail: A) True B) False Points Earned: 2.0/2.0 Correct Answer(s): False 2. This organelle keeps DNA from getting tangled in cytoplasmic machinery and isolates it from damaging reactions A) endoplasmic reticulum B) nucleus C) nucleolus D) golgi body Points Earned: 2.0/2.0 Correct Answer(s): B 3. A buffer protects cells against: A) changes in pH B) excessive weight gain C) salt D) heat
Premium Adenosine triphosphate DNA Cell
Exercise 1. Upgrading TO: Valerie Bernier‚ Dentist RE: Can I upgrade the office? Hello Dr. Bernier‚ I am happy to help out with your question. From the information you have given me about the workstations‚ i’m sure that your machines meet the minimum requirements for a Windows 7 Professional install. Unfortunately‚ an upgrade from Windows XP to Windows 7 Professional isn’t possible without performing a clean install. Only a Windows Vista can be upgraded to Windows 7 Professional without having
Premium Windows 2000 Microsoft Windows Vista
Projects when the trainer/assessor has reviewed the work and requested additional information. SECTION (1) Assignment Activities & Case Studies Refer to individual questions for trainer/assessor feedback. Section (2) Case Studies and Work Based Project # Did the student/ candidate satisfactorily complete the following: Response S- Satisfactory NS – Not Satisfactory S NS Comments Case Studies 1 Demonstrated personal leadership qualities and areas for improvement. 2 Demonstrated open communication
Premium Sports radio Feedback Communication
Oil Precious Ahmed ID# 6463614 Section 07‚ Friday afternoon Lab experiment performed on: Friday‚ January 19‚ 2013 Lab report submitted on: Friday‚ January 24‚ 2013 Introduction Before the synthetic aspirin of today‚ salicylic acid‚ which is the important ingredient found in aspirin‚ was extracted naturally from methyl salicylate found in Wintergreen oil‚ which could be found in certain plants. The purpose of this lab experiment is to prepare salicylic acid from the natural starting material
Premium Salicylic acid Distillation Chemistry
Title of elective: ENGLISH FOR CHILDREN AGES 8-12 ASSIGNMENT 1 1. How many distinct stages does an infant pass through between birth and 18 months? At which stage does the child / should the child start using consonants and vowels? A: They pass through 5 distinct stages. The child should start using consonants and vowels between 20-25 weeks. 2. What do we call the type of speech is when toddlers (by the age of 2) start using 2 words together? A: Telegraphic speech 3. At
Premium English language Language Game
Lab Eight: Identification of HydrocarbonsWebGoogle+GmailDocsmore ▼ All DocsEdit Orgo Chem Lab 8 Lab Eight: Identification of Hydrocarbons Organic Chemistry 311 Abstract: Unknown hydrocarbon K was identified by using purification‚ determination of boiling point by using the capillary tube technique‚ the calculation of density and obtained refractive index value from the Abbe-3L refractometer. The density was not useful due to an error of the machine but the boiling point and refractive index
Premium Chemistry Chemical substance Gas
Lab 1: Microscopy and the Metric System Part A: 1. List the components of the compound microscope and their function. 2. determine the total magnification given that you are using a compound microscope with the following objectives: 4x‚ 10x‚ 40x‚ and 100x 3. what is meant by the depth of field? 4. what is meant by the field of view? 5. describe the process of making a wet mount. ________________________________________________________________________________ 1. -Focal adjustment; used
Premium Microscope Optics Lens