Post-Lab Questions 1. Using the information provided in the Introduction and your observations from Part 1‚ hypothesize as to the type of electrolyte the following solutions would be. Justify the hypothesis from a chemical standpoint. a. Aqueous Sodium Hydroxide—NaOH (aq) is a very strong base‚ which will completely disassociate into Na+ and OH- ions‚ which would make it a very strong electrolyte. Chemical reaction of the disassociation of Sodium Hydroxide: NaOH (aq)Na+ (aq)+ OH-(aq)
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CMIS 320 Lab 1 Homework Part 1 a) A piano manufacturer wants to track all pianos it makes. Each piano has a unique serial number and a manufacturing completion date. Each instrument represents exactly one piano model‚ all of which have an identification number and model. The company produces thousands of pianos of a certain model‚ and the design is specified before any single piano exists. 1. Identify the degree and cardinalities of the relationship. Piano-Model: Cardinality: one-to-many
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How Much Sodium Bicarbonate Is In the Mixture? Lab Investigation 14 Chemistry 113 Lab 10/13/2011 1) Method 1: Adding acid NaHCO3 + HCl → NaCl + CO2 + H2O a) Unknown mixture of NaCl and NaHCO3 Mass of unknown mixture (NaCl + NaHCO3) | 3 g | Mass of HCl | 30 .31g | Mass of products ( NaCl + H2O ) | 26.98 g | Calculate mass of CO2 | 6.33g | Calculate mass of NaHCO3 | 12 .1 g | i) Calculation : Mass of CO2 = [Mass of unknown mixture (NaCl + NaHCO3) + Mass of HCl ] – [Mass of NaCl
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Lab # 4 Determination of Density of Liquids Name: Lab Partner: Period: 3 Date Completed: 9/23/2014 Date Submitted: 9/29/2014 Data TABLE 4 DENSITY OF SALT SOLUTIONS-INDIVIDUAL GROUP’S RESULTS Concentration (%) Mass (g) Volume (mL) Density (g/mL) 0 9.9522 10.00 0.9952 4 10.1291 10.00 1.013 8 10.5233 10.00 1.052 12 10.7487 10.00 1.075 16 11.0297 10.00 1.103 Unknown # 10.6234 10.00 1.062 Calculations 1. Show all density
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Name:_______________________ Date:___________ Period:______ Page:_______ 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
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Homer Gere Science - Perry 7-3 Kober Balloon Lab Report Problem: The goal of the balloon lab was to get a balloon attached to a line all the way across the room. One limitation was that we could only use one balloon‚ two straws‚ and tape. The circumference of the circle at its largest point couldn’t be larger than 100 cm. Procedure/Results: Trial Number | Distance Traveled (CM) | Time (sec) | Velocity (CM/sec) | 1 | 346 | 1.02 | 339.2 | 2 | 471 | .79 | 596.2 | 3 | 356 | .8 |
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Evolution Lab The finches on Darwin and Wallace Islands feed on seeds produced by plants growing on these islands. There are three categories of seeds: soft seeds‚ produced by plants that do well under wet conditions; seeds that are intermediate in hardness‚ produced by plants that do best under moderate precipitation; and hard seeds‚ produced by plants that dominate in drought conditions. The lab is based on a model for the evolution of quantitative traits-characteristics of an individual that
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Regents Biology Period _________ Date ______________________ LAB ____. ANATOMICAL EVIDENCE OF EVOLUTION In our studies of the anatomy and development of animals we have discovered that many living creatures that look quite different on the surface have similarities underneath their skin that suggest that they are related to each other. This is evidence that living creatures have evolved‚ or gradually changed over time. In this lab‚ you will learn about homologous‚ analogous‚ and vestigial structures
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Eilisha Joy Bryson MISEP Chemistry 512 – Jacobs Enzyme Catalyst Lab - Formal Report – August 8‚ 2007 ABSTRACT This investigation examined what would happen to the rate of an enzyme-catalyzed reaction if the concentration of substrate changed. We hypothesized that if the concentration increased‚ then the reaction rate would also increase. To test our question‚ we varied a combination of substrate and buffer‚ totaling 6mL‚ with a constant amount of 2 drops of catalyst. The enzyme catalyst
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LibraryPirate LibraryPirate Metric Prefixes Multiple 1‚000‚000‚000‚000‚000‚000 1‚000‚000‚000‚000‚000 1‚000‚000‚000‚000 1‚000‚000‚000 1‚000‚000 1‚000 100 10 1 0.1 0.01 0.001 0.000001 0.000000001 0.000000000001 0.000000000000001 0.000000000000000001 1018 1015 1012 109 106 103 102 101 1 10–1 10–2 10–3 10–6 10–9 10–12 10–15 10–18 Name exa peta tera giga mega kilo hecto deka — deci centi milli micro nano pico femto atto Abbreviation E P T G M k h da — d c m m n p f a Physical Constants Acceleration
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