Lab 2 Sara Rodriguez Period 2 Purpose: What is the more accurate way to measure volume‚ by using displacement or by using a ruler? Hypothesis: If the method of displacement is used ‚ then the results will be more accurate than measuring the volume using a ruler. Materials: -250 mL graduated cylinder -Triple beam balance -A weigh boat -Ruler -Samples Procedure: 1. Gather materials such as ‚ samples‚ weigh boat‚ triple beam balance ‚ graduated cylinder‚ ruler and water. 2. Take the materials
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Marissa Lule Isaac Cuevas Juan Arias Andres Santana per.4 4/20/15 Pedigree Lab Introduction How can you spot different pattern of inheritance? When we started this lab the question (subject) we had to try and solve was ‘Which pattern of inheritance is present in the O’Smithsteinskis and AkimGarciaChan family pedigree? If when looking at the number of people shaded in our pedigree and find that the number is increasing each generationon then we can assume that the p
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The completed calculations can be found on lab notebook page 14. Using this data‚ graph 2 was generated showing the relationship between the intensity ratio and the concentration of chlorine. Relating to the Stern-Volmer equation of F0/F=1+KSV[Q] and the linear line equation of y = 124x + 1.08‚
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Physiology‚ Berry HOMEOSTASIS LAB ACTIVITY Introduction: Homeostasis means maintaining a relatively constant state of the body’s internal environment. The term used to describe a pattern of response to restore the body to normal stable level is termed negative feedback. When a stimulus (environment change) is met by a response that reverses (negates) the trend of the stimulus‚ it is negative feedback. As a result the internal environment is returned to normal. Pulse rate is constantly checked
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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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