Station #1: Water and Ice Station Observations on a frozen and a normal can of soda being placed in a pool of water: The normal can of soda Is alright The frozen can of soda Is compressed Observations on Ice cubes being poured in ethanol: Ice cube in ethanol The ice cube floated Ice cube in water The ice cube sank Station #2 Cohesive properties of Water Observations on waters cohesive properties using a paper clip and a coin: Paper clip The paper clip stayed on top for a few
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Biology 20 IB Design Lab Does increasing or decreasing the ph level of a 3% concentration H2O2 (l) solution affect the amount of oxygen released between 15.0ml of the solution and a 5g sample of liver? The reaction is measured by the difference in mass of a balloon that is used to capture the amount of gas released by the catalase enzyme found in liver reacting with a basified 3% H2O2 (l) and an acidified 3% H2O2 (l) . Chemical reactions occur when two or more molecules interact and the molecules
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Water Wheel Work‚ Power‚ and Efficiency Pre-Lab Preparation: Purpose: The purpose of this lab was to create an efficient water wheel that would produce a productive time in lifting the cup of nuts and bolts that was attached to the pipe used in rotating out water wheel. The more efficient our wheel was the better the time we would have in lifting our cup. We were then able to observe the work that was needed to turn the axel‚ the time that is taken to bring the cup of washers to the axel‚ and
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Lab Title: "The Effect of Salt on the Boiling Point of Water" Lab Question: How does adding salt to water affects it’s boiling point? Prediction : In this paper‚ a newly proposed model based on solvation between pure solvent and salt for prediction of salt effect on vapor–liquid equilibria is presented by using only the vapor pressure depression data of pure solvent+salt systems that compose the mixed solvent with salt system Materials : 200 mL of distilled water‚ 2 beakers
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The purpose of this lab was to model the significant differences in density that oceans experience when glaciers and polar ice caps melt. It demonstrated that the variation in density greatly affects salt water. I discovered that the increase in freshwater causes a decrease in density. I made three claims. First‚ the higher the salinity of the water is‚ the denser it will be. This was shown in my data by the fact that‚ with 0mL of fresh water‚ the density was 1.108 g/mL For every milliliter of fresh
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Water Testing Lab Conclusion In this lab‚ chemical tests were used to check for the presence of calcium‚ chloride‚ and sulfate ions in water samples. To do this‚ the testers started with five samples: a reference‚ a sample of only the chemical being tested for‚ a control‚ distilled water‚ two home water samples‚ and a school water sample. To test for the ions in the water‚ a chemical that would react with the ion and create a precipitate was added. If the precipitate was not easily visible‚ a
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In conclusion‚ after conducting the lab‚ the emergent properties of water were tested and proved. These trials and experiments were able to verify the adhesion‚ cohesion‚ polarity‚ temperature stabilization‚ solvency‚ and density changes exhibited by water. During the glass and wax paper lab‚ we observed the adhesive properties of water. When a droplet of water touched the glass‚ it dispersed immediately. The droplet placed on the wax paper remained intact and in droplet form. Also‚ when the
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LAB 05B Momentous Design Proposal name :sonia malini Date of investigation: 8 September‚ 15 September 2009 Date of submission: 29 September 2009 Purpose The main purpose of the experiment is to investigate validity of the conservation of linear momentum from three main different types of momentum‚ namely: head on collision of equal masses‚ head on collision on unequal masses and exploding carts. Theory In the 17th century‚ Isaac Newton was the one who realized that the momentum is conserved
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Problem Statement and Instructions for First Lab‚ CL417 Process Control August 13‚ 2013 The first lab is about identifying the First order and Second order Transfer Function of a Single Board Heater System (SBHS). The SBHS is hosted under virtual labs on a remote server and you have to access it remotely and perform experiments. Here is the list of things you have to do for the first lab. Things to be done for first submission: 1. Go to http://vlabs.iitb.ac.in/sbhs/. Download the file Tutorial
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Pennsylvania State University Lab Report on Experiment 10- The Chemistry of Natural Waters Introduction What is water hardness? Water is extremely important to all living things and even to non-living things‚ indirectly. Therefore‚ the way water travels and gets to a place is also extremely important because its transportation methods determine the chemicals that get involved and added into the water as it travels. This relates to the hardness of water. The hardness of water is basically caused by the
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