Name ____________________________ Date ____________ THE EFFECT OF CONCENTRATION ON THE RATE OF DIFFUSION PURPOSE: This experiment will explore the concentration gradient by measuring the rate of diffusion in a number of theoretical cells. The objectives for this lab are: (1) To define concentration gradient‚ (2) To explain experimental data concerning different concentration gradients‚ (3) To complete a data table and prepare a graph to illustrate the data‚ and (4) To apply information from
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Research Question: How can different masses of salt affect the percentage of transmitted light? Variables – Independent – • Mass of salt‚ the salt added into the distilled water in grams (0.1‚ 0.5‚ 0.75‚ 1‚ 1.5) Dependent – • Percentage of transmitted light through the solution using 5 different mass of salt and a constant availability of 2g of sugar as source of food. (there are 5 trails for each conical flask representing 5 different salt masses) Controlled – What is being Controlled
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The short story ‘Spilled Salt’ is about a mother‚ called Myrna‚ whose son‚ Kenny‚ has been convicted to go to prison‚ then he comes back one day‚ and she does not know how to react about his homecoming. Myrna starts wondering how it all started and why she does not want to see her son anymore. She ends up deciding that she does not want to see Kenny again‚ and packs her stuff to go away for a week‚ and leaves a note behind for Kenny‚ saying that she does not want to see him again‚ and she wants‚
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Why does the colour leak out of beetroot? Procedure to investigate the effect of temperature Hypothesis- The higher the temperature while cooking the beetroot‚ the more pigments well leak out from the cell membrane‚ hence the absorbance would increase. My hypothesis was concluded by the facts that beetroot contains red pigments called betalians which are located in the cell vacuole. Normally the pigments cannot leak out; however cooking the beetroot allows the movement. This is because the cell
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SOLUTION AND CONCENTRATION A solution is a homogeneous mixture‚ made up of a solute dissolved in a solvent. Ex. In a water (aqueous) solution of sodium chloride‚ the sodium chloride is the solute and the water is the solvent. Solute – the component that is dissolved or is the least abundant component in the solution. Ex. Sugar‚ salt Solvent – the dissolving agent or the most abundant component in the solution. Ex. Water Common Types of Solution State of Solution State of Solute
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composed of just one of these substances". Bile is a greenish-brown liquid produced in the liver then stored in the gallbladder which is use to digest fat. Bile contains water‚ cholesterol‚ fat‚ bile salts‚ proteins and a waste product call bilirubin. If the bile has too much cholesterol ‚ bile salt‚ or bilirubin‚ they hardens into stones. There are two types of Gallstones. The first and more common type is known as the Cholesterol Stone‚ which accounts for 80 percent of all cases of Gallstones
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Although many people go through extreme hardship during war‚ they can find things to love that gives them the endurance to pull through. The novel Salt to the Sea by Ruta Sepetys‚ details the story of a group of refugees that are desperately trying to escape the encroaching Russian army who are brutally pillaging‚ raping‚ and massacring everything in their path‚ by getting to the ship the Wilhelm Gustloff. The Wilhelm Gustloff is attacked by a Russian submarine and sinks and only four out of the
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CONCENTRATION AND DILUTION Physiology 1‚ Las Positas College Name: In science‚ concentration is a measure of the number of particles (solutes) in a given volume. If one room has 100 people in it‚ and a room of equal size has 50 people‚ one can say that the concentration of people in one room is twice that of the other. Quite simple‚ isn’t it? On a molecular level‚ consider whether you put one lump or two of sugar‚ or no sugar at all‚ in your coffee. If you use two lumps‚ you prefer twice
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Biomes Comparison Essay Ecologists group earth’s diverse environments into biomes. A biome is a complex of terrestrial communities that develops a large area and is characterized by certain soil climate conditions and particular assemblages of plants and animals. Not all species live in every biome they vary in their adaptations to different conditions. An adaptation is an inherited characteristic that increases an organism’s ability to survive and reproduce. These sorts of variations in plants
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investigate how does the concentration of Hydrochloric acid affect the rate of reaction? Outline I aim to discover how different concentrations of Hydrochloric acid influence the rates of reaction. In order to carry out this investigation I have decided to use marble chips‚ which I will vary the sizes as powder‚ small chips and large chips. I will also be changing the concentration‚ the different concentrations are as follows 0.2m‚ 0.5m‚ 1m‚ 1.5‚ 2m. I have chosen these concentrations as they have a good
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