Lab Report Diffusion is - One of two kinds of passive transport‚ - Diffusion can transport ions from higher concentration to lower concentration region without any other forces. - A net movement of molecules in and out of cell membrane - Diffusion can be affected by the steepness of the concentration gradient. Lab question: Is the rate of diffusion influenced by the presence of second molecule? Prediction: the rate of diffusion is influenced by the presence of second molecule
Premium Diffusion Molecular diffusion Chemistry
Diffusion and Osmosis Experiment Methods/Materials: 7.1 Experiment: Rate of Diffusion of Solutes In the initial set up of this experiment I had 2 sets of 3 screw-cap test tubes that had each been half-filled with 5% gelatin and 1-mL of the correct dye (either potassium dichromate‚ aniline blue‚ or Janus green) in each of the test tubes. I labeled the 3 test tubes of set 1 with which die they contained and marked them “5 ˚C”. Then with the other set I did the same exact thing‚ except I labeled
Premium Diffusion Microscope Sodium chloride
REPORT ON Analytical model for predicting sheet springback Submitted By: shaikh afroz 123374002 Department of Metallurgical Engineering and Materials Science INDIAN INSTITUTE OF TECHNOLOGY‚ BOMBAY 1) Introduction As an important manufacturing method‚ bending has been widely used in modern industries to produce stamping parts such as frames‚ channels‚ braces‚ brackets and other structural parts. The understanding and development of bending mechanics are aimed at achieving two kinds
Premium Finite element method Continuum mechanics
in the artificial cells to the diffusion rate using the phenolphthalein-NaOH agar and the HCl solution. Lab #2 was a model of diffusion and osmosis‚ in which we filled the model cells with different solutions and determined the rate of diffusion. In lab #3‚ the results demonstrated the interactions between selectively permeable membranes‚ water‚ and solutes and how they are important in cellular and organismal functions. In lab #1‚ the results showed the diffusion rate between the certain time period
Premium Osmosis Chemistry Diffusion
Examining Diffusion and Osmosis Introduction: Purpose: 1. To simulate and observe the diffusion of solutes and the osmosis of water through a semipermeable membrane through color change and sugar tests. 2. To speculate osmosis occurring in dialysis bags and potato cores by comparing percentage change in masses. Background information: Molecules are always in random‚ constant movement due to their kinetic energy. This causes the molecules of a cell to move around and bump into each other
Premium Osmosis Cell wall
effect of concentration of acid on the rate of diffusion in agar blocks? Aim: To investigate how the concentration affects the rate of diffusion of hydrochloric acid through agar blocks Research Question: To determine how will different concentrations (0.1M‚ 0.2M‚ 0.3M‚ 0.4M‚ 0.5M) of hydrochloric acid affect the rate of diffusion of sodium chloride through agar blocks? Introduction-include prediction; information you have researched before Diffusion refers to the passive movement of molecules along
Premium PH indicator Sodium chloride Chlorine
Running Header: HOW TO HAVE A SUCCESSFUL MARRIAGE 1 Rhonda T. Tucker Liberty University August 10‚ 2012 HOW TO HAVE A SUCCESSFUL MARRIAGE 2 Abstract Marriage is a relationship that can be beautiful between two wonderful people. There are some good and bad aspects to the institution of marriage that must be examined. One thing for certain‚
Free Marriage Human sexuality
1. Descriptive Statistics WinPct TakeInt TakeFum GiveInt GiveFum DefYds/G RushYds/G PassYds/G FGPct Mean 0.50 15.84 12.13 15.84 12.16 315.94 112.46 203.45 80.77 Standard Error 0.04 0.95 0.53 0.88 0.58 4.43 4.17 6.64 1.20 Median 0.56 16.00 11.50 15.50 12.00 316.80 106.00 205.30 80.50 Mode 0.69 16.00 11.00 16.00 9.00 316.80 76.50 Standard Deviation 0.21 5.38 3.00 4.98 3.28 25.05 23.62 37.56 6.81 Sample Variance 0.04
Premium Regression analysis Statistics Variance
N/C .5cm N/C N/C Molecular Weight Distance Traveled Speed of Diffusion Blue Dye 793g 20.00mm 600mm/hr Red Dye 496g 45.00mm 1350mm/hr Aloe Vera Gel Molecular Weight Distance Traveled Speed of Diffusion Blue Dye 793g 15mm 450mm/hr Red Dye 496g 25mm 750mm/hr 1. The red dye diffused faster in both materials. 2. Yes‚ since the red dye is lighter it diffuses faster. 3. The rate of diffusion does change after time. The longer the dye sits the less it spreads in
Free Diffusion Molecular diffusion Starch
Case study # 1 Problem definition: SAT score as one of student selection criteria and its weight needs to be revised Problem justification: Positives about SAT score; SAT score are valid predictors of how well a person will do in college. “According to people who design the SAT” SATs tap intelligence and employers want intelligent job applicants Concerns about SAT score “from Alix point of view”; The quality of high schools varies greatly‚ so that the level of student performance that
Premium SAT