Osmosis is a passive movement of water through a selectively permeable membrane moves from an area of higher concentration to an area of lower concentration. In this lab‚ we can determine the direction of diffusion of small molecules by measuring the diffusion of small molecules through dialysis tubing. This tubing acts as a selectively permeable membrane‚ and allow to pass larger molecules slowly. Introduction: Cells have kinetic energy and it causes the molecules of the cell to move around
Premium Osmosis Diffusion Chemistry
The pGLO lab is a lab where students attempt to put the genes that make a jelly fish glow into E. Coli. After a process called transformation‚ the process in which a cell takes up and expresses a new piece of genetic information‚ the E. Coli will be able to glow and will be antibiotic resistant. The students first need to learn a couple of techniques before they are able to begin this lab. The first technique they will need is how to keep their environment sterile. They must learn to only open their
Premium Bacteria Microbiology Gram staining
the ideas or writing of other individuals/authors. Sarah SanAngelo March 4‚ 2015 Author Date 8 Lab Section # Alex Fry Lab Partner BIOL 1208 Writing Assignment 1 Results Worksheet Lab Topic: Temperature Introduction: In this experiment‚ water and potato enzymes were mixed to create a solution and placed into three test tubes. The first test tube was placed in 0 degrees Celsius‚ second test tube 22 degrees Celsius‚ and third in 95 degrees
Premium Null hypothesis Temperature Celsius
III. Materials and Procedures Materials needed include 1 molar HCl solution‚ 1 molar NaOH solution‚ 6 test tubes‚ measuring pipette‚ 10ml graduated cylinder‚ 40 ml 3% hydrogen peroxide solution‚ straightedged razor blade‚ scissors‚ forceps‚ stirring rod‚ fresh liver‚ fresh apple‚ fresh potato‚ test tube holders‚ ice bath‚ warm water bath‚ and boiling water bath. A Place 2 ml of the 3% hydrogen peroxide solution into a clean test tube. Using forceps and scissors‚ cut a small piece of liver and add it to the test tube
Premium
Chapter 3: Stoichiometry 3: Stoichiometry 5: Thermochemistry 8: Covalent Bonding and Molecular Structure 15: Chemical Equilibrium 16: Acids and Bases 3.2 Stoichiometry and Compound Formulas 3.1 The Mole and Molar Mass 3.2 Stoichiometry and Compound Formulas 3.3 Stoichiometry and Chemical Reactions 3.4 Stoichiometry and Limiting Reactants 3.5 Chemical Analysis Chapter Summary Chapter Summary Assignment Reference Tools Periodic Table Molarity Calculator Molar Mass Calculator Unit
Premium Chemistry Chemical reaction Oxygen
temperature of water) to make sure that all the water is in the beaker. 6. Cool the aqueous solution in an ice bath‚ use a thermometer to make sure that the temperature of the tea is 20° C (When using 20° C hot water bath there is no need to cool it down – skip step 6) 7. Extract the solution with a 30ml portion of dichloromethane (CH2Cl2). SAFETY CONCERN - Do not get dichloromethane
Premium Water Laboratory glassware Mass
not exist (Lab Manual 3 pg. 1). They help in many different ways that are useful to the body of living organisms. Enzyme are used to speed up chemical reactions (Lab Manual 3 pg. 1). Through this process‚ they are considered very unique because they are not altered or consumed within the reaction (Lab Manual 3 pg. 1). This is why enzymes are considered biological catalysts. They also do not alter the equilibrium of a chemical reaction nor the amount of free energy that is released (Lab Manual 3 pg
Premium Enzyme Metabolism Chemical reaction
Lab Report Quiz!!! | | | LabRepQuiz010 Question MC #19: All are true of the Materials and Methods section except___.Answer | | | | | | | | | | * Question 2 1 out of 1 points | | | LabRepQuiz010 Question MC #7: Which of the following is the best written sentence that includes the information below taken from an article written by Dr. Costanza‚ but avoids plagiarism? -A decade of research from Sunshine Health Clinic has shown that 20 minutes of exercise a day can
Premium Thyroid Energy Endocrine system
Horwitz‚ J. Assoc. Off. Anal. Chem. 59 (1976) 658–661. 4. R. A. Robinson and R. H. Stockes‚ Electrolyte Solutions‚ Buterworthy Scientific Publications‚ London‚ 1959. 5. Ya. I. Tur’yan‚ O. Yu. Berezin‚ I. Kuselman‚ and A. Shenhar‚ J. Am. Oil Chem. Soc. 73 (1996) 295–301. Kuselman‚ Croat. Chem. Acta 76 (2003) 329–334. 8. H. S. Harned and B. B. Owen‚ The Physical Chemistry of Electrolytic Solutions‚ 3rd ed.‚ Reinhold Publishing Corporation‚ New York‚ 1958‚ p 9. H. A. Laitinen‚ Chemical Analysis‚ Khimiya
Premium PH Titration Acid dissociation constant
test the weight of six potatoes before and after being put into different sucrose solutions. The following data was observed and collected throughout the experiment. Observations: -Qualitative: The potatoes were: Tubed shaped Yellow in color Initially hard in texture -Quantitative: Table 1: Weight of the potato in grams before and after placed in a different concentrations of sucrose solutions. Sucrose solution (M) Weight Before (g) ± 0.01 (A) Weight After (g) ± 0.01 (B) 0 4.56 4.31
Premium Chemistry Concentration Solution