Molarity Mix Investigation Report

Decent Essays
The objective of the molarity mix investigation lab was to identify seven unlabeled sucrose solutions with molarities from 0-1.0 M. In this lab, students were forced to “think” outside the box because they had to come up with the procedure. Once students came up with the procedure, then it was necessary for students to prepare the lab materials. One major objective of this lab was to learn about diffusion. Diffusion is the movement of particles from an area of high concentration to an area of low concentration until they reach dynamic equilibrium. The objective of the cell size/diffusion lab was to explain how cell size and shape affect the overall rate of nutrient. Diffusion is one of the most common way that substances are transported between

Related Documents

  • Great Essays

    2.03 Lab Permeability

    • 1870 Words
    • 8 Pages

    Title: Alexandra Whitaker, Ms.Dayton, 12/23/16, 2.03 lab permeability Objective(s): The main purpose is to find out if plastic bags are permeable to starch and, or, iodine. Also, to find out wither potatoes are hypotonic, hypertonic, or isotonic by testing the different amounts of sucrose solutions Introduction: The necessary background information needed for this lab is the definition of osmosis, diffusion, active transports, passive transports, permeability, concentration, tonicity, and to now the scientific concepts of hypotonic, isotonic, and hypertonic. Hypothesis: For part 1 my hypothesis is: That the starch will diffuse across the plastic bag and react with the iodine and will have a color change to the water to imply the reaction…

    • 1870 Words
    • 8 Pages
    Great Essays
  • Great Essays

    Environmental Effects on Pillbug Behavior Catherine Liapes October 14, 2015 AP Biology- Pd.9 Mr. Angus Introduction: Before conducting this lab, I researched information on pillbugs and learned that pill bugs are commonly found in damp environments such as piles of leaves, or under logs. Although they are crustaceous, they can still spend their entire lives on land. They are about ¾ inch in length with seven pairs of legs, and multiple antennae. Pillbugs are nocturnal and mainly consume rotting vegetation.…

    • 1616 Words
    • 7 Pages
    Great Essays
  • Improved Essays

    While he wanted to achieve a solution of 400 mL, he ended up with a solution of 420 mL because he did not take into account the volume that the solute (sucrose) would take up within the solution. This additional volume would thus also change the concentration; however, even if the actual concentration amounted to 400 mL, he would still have not obtained the 4M he assumed he was creating. This may be due to guessing, but he may have also assumed that by adding 400 mL of water, that would make the solution 4 M, regardless of the amount of solute he added into the mixture (If he wanted a 3M solution, he may have thought he could add 300 mL of deionized water). Because of his error, he ended up with a solution with a much smaller concentration. Therefore, when the student wants to create a solution of certain concentration, he needs to know either how much solution or solute he wants and then calculate for the other component in order to achieve the desired concentration.…

    • 1978 Words
    • 8 Pages
    Improved Essays
  • Improved Essays

    The iodine lab demonstrated the concept of diffusion, the movement of molecules move from a higher concentration to a low concentration through a semipermeable membrane. In the experiment, we observed a beaker filled with distilled water and Lugol’s iodine solution enter a bag filled with glucose and starch solution through the semipermeable membrane provided by the dialysis tubing. While the beaker remained the same color throughout, the solutions in the bag changed from a clear color to a light blue color due to the influx of iodine indicating the presence of starch. Although water molecules are polar, they are small enough to move across the membrane until it reaches an isotonic solution. There was also now a presence of glucose in the…

    • 690 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Molar Mass Lab

    • 463 Words
    • 2 Pages

    This experiment will allow us to determine the molar mass of the unknown solute through calculating the difference in freezing point of the pure solvent and the solution with the unknown solute. This lab will show case one of the colligative properties of a solution. This property is dependent upon the number of solute molecules or ions and not the identity or chemical property of the solute. A common example is water which both freezes and melts at 0…

    • 463 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Introduction This accuracy lab of titration report experiment will discuss how to find the unknown substance molarity. By using some of the lab equipment to help guide and identify the molarity of the unknown substance. I believe that it will take around three hundred drops of sodium hydroxide (NaOH) for it to be able to reach to its endpoint of the unknown substance. My reason behind my hypothesis is… Methods…

    • 365 Words
    • 2 Pages
    Improved Essays
  • Decent Essays

    Diffusion Of Skittles

    • 211 Words
    • 1 Pages

    Diffusion Hello today we will be talking about a skittle sure a skittle is delicious but did you know it could be used for many more than just eat. Did you know that you can make an experiment with just a skittle and some water well that’s exactly what we did got a petri dish and filled it up with water then we put the skittle in the middle of the dish. As soon as we placed the skittle in the water it stated dissolving and the water turned orange the skittle got tiny and the top of the skittle got rough.…

    • 211 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    LO 2.7 I understand cell size and shape affect the overall rate of nutrient intake and rate of waste elimination by determining LO 2.8 I understand data, regarding the types of molecules that an animal, plant, or bacterium will take up as necessary building blocks and excrete as waste products, is significant in biological studies. LO 2.9 I understand how to represent qualitative data based on the exchange of molecules between an organism and its environment, and the subsequent use of these molecules to build new molecules that facilitate dynamic homeostasis, growth, and reproduction. LO 2.10…

    • 391 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    A) Explain why transport systems are required in the body? The reasons as to why transport systems are required in the body is because it allows the body to be able to respire and be able to get all that it needs to maintain the same state, for example, oxygen throughout the body as well as nutrients to the cells in the body. An example of a transport system is the Respiratory system. This system is required in the body as it helps the body to take in oxygen, this can be done through the lungs, as it allows it to be absorbed into the blood, through the use of the alveolus found within the tissue of the lungs, in order to provide energy for the cells in the body to keep functioning as well as developing.…

    • 630 Words
    • 3 Pages
    Improved Essays
  • Superior Essays

    Egg Osmosis Egg Lab Report

    • 1951 Words
    • 8 Pages

    In this lab, the effects of osmosis on an egg without a shell will be observed; an egg will be submerged in water and then corn syrup. Osmosis, the process of water moving from a low concentrated area to an area of high concentration, is the main theme of this lab. The purpose of this experiment is to view the effects of an egg in a hypertonic state, hypotonic state, isotonic state and diffusion. Hypertonic is the movement of water leaving the egg to an area of higher concentration. When this occurs the egg becomes shriveled.…

    • 1951 Words
    • 8 Pages
    Superior Essays
  • Improved Essays

    It is written in the Lab Manual (2014) “Osmosis is diffusion of water across a differentially permeable membrane” (p. 97). In this experiment, dialysis tubing, a type of differentially permeable membrane which only lets water molecules through, was used to create bags used to model cells. Four bags were made and labeled “A,” “B,” “C,” and “D.” The bags were filled with sucrose solutions of 1%, 1%, 10%, and 25% respectively, then A was placed in a 10%…

    • 1281 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    Observing Osmosis

    • 732 Words
    • 3 Pages

    This experiment showed the important of osmosis by showing how the tube that represents the cells in side us react when placed in different situations. This is very important to know in the medical field, when deciding how to keep our cells healthy and alive. Like when a person is being treated for dehydration, the doctors know what percentage of saline to put in us that it will not swell and eventually burst our cells. By watching osmosis make a cell hypertonic, hypotonic, or isotonic, we have a deeper understanding on why this subject is so important for our overall health and much…

    • 732 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Aluminum Foil Lab

    • 113 Words
    • 1 Pages

    In the first week, 250 mL Erlenmeyer flask contained 20 grams of dissolved sucrose in 200 mL of room temperature water. 0.30 grams Pasteur’s salts and 0.20 grams of dried yeast were added into the mixture separately, as the Erlenmeyer flask gently moved in a swirled motion to mix the substances. Aluminum foil was lightly crimped over the opening of the Erlenmeyer flask, and fermented for two weeks. When time is up, 6 mL of the solution was placed into a vial. The fraction distillation was performed using a 250 mL round bottomed flask; 20 mL of solution was collected per three fractions.…

    • 113 Words
    • 1 Pages
    Improved Essays
  • Great Essays

    Alternate Conception

    • 1036 Words
    • 5 Pages

    Discuss the results and challenges that the students encountered. Did they prove or disprove their hypothesis (what they thought would happen)? Explain that the properties of a mixture are dependent on the amount of materials they use in their mixture. Examples can be used; e.g. I could make a very, chocolaty cake by adding more chocolate, I can dilute (weaken) the strength of cordial by adding more water.…

    • 1036 Words
    • 5 Pages
    Great Essays
  • Superior Essays

    The experiment that I will be conducting focuses on how fast one tablet of Alka seltzer can dissolve in various temperatures of water. The core of this procedure is to determine the impact that temperature has on how fast something dissolves. My hypothesis for this experiment would be that the Alka Seltzer that dissolves the fastest would be the one that was placed in the water with the highest temperature. There will be controlled and manipulated variables explained throughout the experiment. The two main things used in this experiment will be the solute and the solvent, which is Alka Seltzer and water.…

    • 1462 Words
    • 6 Pages
    Superior Essays