fertilized egg in my opinion is a person‚ but only if it is actually in the mother. I do not think a fertilized egg sitting in a lab is a person It is scientifically proven that from the moment of conception the eye color‚ hair color‚ and skin color are all set. Once the egg is fertilized there are 46 total chromosomes which is what makes us human‚ 23 from the mother and 23 from the father. After the egg is fertilized the ball of cells is called an embryo. So in my opinion after the egg is fertilized
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Osmosis of Sucrose Solutions of Different Molarities Through Dialysis Tubing (a Semi-Permeable Membrane) I. DESIGN A. PROBLEM/RESEARCH QUESTION 1. How does increasing molarity of sucrose affect osmosis through dialysis tubing? B. VARIABLES 1. The independent variable in this lab is the molarity of sucrose each dialysis bag is filled with. The time (30 minutes)‚ the temperature (23C) and the type of dialysis tubing used are all constants. 2. The dependent
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Potato Diffusion Lab Hypothesis:________________________________________________________________________ __________________________________________________________________________________ Materials Aprons/Goggles Potato Slice (2-3cm thick) Potato Borer Triple beam balance 6 x 100mL beakers plastic wrap Paper towel 50mL Distilled Water 50mL 0.2M Sucrose solution 50mL 0.4M Sucrose solution 50mL 0.6M Sucrose solution 50mL 0.8M Sucrose solution 50mL 1.0M Sucrose solution Procedure
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Constituent of “Panacetin” Recrystallization& Melting-Point Measurement Organic Chemistry Lab Introduction: Panacetin purportedly includes sucrose‚ aspirin‚ and acetaminophen. However‚ the accuracy of Panacetin’s contents has been called into question by the Association for Safe Pharmaceuticals. Therefore‚ the lab must discover the accuracy of the ingredients listed on Panacetin’s label. The unknown in this experiment is presumed to be something
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Joscely Garris Professor Vinh Hoang CHEM 1151L – 254 25 October 2013 Preparation of Viscous Solution This report discusses an experiment to study the relationship of solute/solvent and the calculations involved to measure the concentration of the solution. The first experiment to take place is the preparation of a salad dressing using xanthan gum solution‚ water and oil. Commonly used as a food thickening agent‚ Xanthan gum is a large molecule composed of several saccharides linked together
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“A Titration Competition” – Lab #8 1. Since all solutions and aqueous solutions have their own pH‚ it is important for all glassware to be clean and dry before performing a titration. Even a slight trace of a different solution could alter the pH and give an inaccurate titration reading. If the glassware is not completely dry after rinsing‚ the small traces of water could make the solution more dilute than it should be thus changing its concentration. 2. Air bubbles in the burette tip is a
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highlights the need to wash hands with soap before meals and after defecation. Human excreta is the essence of the sanitation challenge. One gram of faeces can contain 10 million viruses‚ 1 million bacteria‚ 1‚000 parasite cysts and 100 parasite eggs. Washing hands and using toilets properly impacts not only
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Chemistry 112: Anion Analysis Page 7 ANION ANALYSIS M uch of the work you will be doing in the Chemistry 112 laboratory will be concerned with identifying positive and negative ions‚ that is‚ cations and anions‚ in solutions whose composition is unknown. This procedure is called QUALITATIVE ANALYSIS. The modern chemist frequently wishes to identify the constituents in a very small amount of substance‚ and so he depends heavily on instrumental methods of analysis. While the procedures
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Solute Concentration of Potatoes Lab #1 Purpose: To find the molarity/concentration of potato cytoplasm. Materials: As on page 1 in the lab handout. Procedure: As on page 1 in the lab handout. Data and Observations: Test Tube # | Concentration of sucrose solution (mol/L) | Initial Mass (g) | Final Mass | Percentage change in mass | 1 | 1.0 mol/L | 3.00g | 2.25g | -25.0% | 2 | 0.9 mol/L | 2.70g | 2.07g | -23.3% | 3 | 0.8 mol/L | 2.92g | 2.25g | -22.9% | 4 | 0.7 mol/L | 2.60g
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Conductivity of Ionic and Molecular Aqueous Solutions Abstract Aqueous solutions that have free ions have higher conductivity values than solutions with most molecules. The purpose of the experiment was to see if ionic strength of an aqueous solution determines its conductivity. We tested each compound by putting the conductivity probe into its aqueous solution. Then the computer would analyze the data and give us a conductivity value. After each solution was tested‚ we used deionized water to
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