Concentrations

10/13/2014 Introduction: The purpose of this lab is to find the unknown concentration of Cu+2 by comparing the solution to a set of standard concentrations, different known concentrations, which are prepared by diluting approximately 2.5 grams of copper (II) sulfate pentahydrate. A concentration is the amount of solute relative to the volume of a solution, the more solute the more concentrated the solution will be. Concentrations are reported using molarity (M) which is the moles of the solute by the

What is the effect of salt solution concentration on the mass in russet potatoes? Background Osmosis is a process which molecules of a solvent pass through membrane from a less concentrated area to a more concentrated area until it equalize the concentration on both side. Isotonic, hypertonic, hypotonic solutions can be generally used to compare concentration of a solute in two solutions. Hypertonic solution is when one of two solution has a higher concentration of a solute and we call this type of

Michelle Lui Period 7 AP Bio Lab partners: Ashwin Sannecy, Matthew Kim An Investigation Of The Effect Of Different Concentrations of Sucrose On Osmosis Research Question: Part A: How does the molarity of sucrose solution inside dialysis tubes affect the percent change in mass of the tube after 20 minutes? Part B: How will the molarity of sucrose solution outside the root vegetable affect the percent change in mass of the root vegetable after being left in the solution for about 48 hours? Background:

Effect of Concentration on Osmosis Aim To find out how the concentration of sucrose solution affects the mass of the potato chip left in the solution for one day. Prediction I predict that when the sucrose concentration is low the potato chip will gain mass. This is because there will be a higher sucrose concentration in the potato chip so water will go into the potato from the solution. I predict that when there is a high concentration of sucrose the potato will lose mass. This

of this lab was to determine the effect of solutions with different salt concentrations on the mass of a potato slice. The data collected and analyzed in this experiment seems to support the hypothesis, which stated that the mass of a potato slice would decrease, as the salt concentration increased. This can be evidenced in Graph 1 where the downward slope of the data shows a negative correlation between salt concentration and average percent change. During the experiment, only the potato slices

Summary The purpose of this experiment was to find the molarity of a concentration and the acid-base titration. In part A of this experiment, the molarity of an assigned concentration which was 0.040, was found using formulas that represent molarity. Part B of this experiment, which was titration of an acid and base, was found by a series of steps that involved dropping Sodium Hydroxide from a buret into vinegar, until the perfect shade of pale pink occurred. With the Phenolphthalein, too much

that is isotonic, hypotonic, or hypertonic to the solution. If the cell is isotonic to a solution, this means that the solute concentration of a cell and its environment is the same and therefore there will be no movement of water. If the solute concentration is lower than that of the cell, then water will flow into the cell, causing it to expand. If the solute concentration is lower than that of the cell then water will flow out of the cell, causing it to shrink. 2. Were your hypotheses right

In this lab, lab 4.3 Comparing the Concentrations of Saturated Solutions, we set out to find and compare the solubilities of two solids in water. In addition, we tested if solubility is a characteristic property of a solid in a given liquid. This lab allowed us to test and use a reliable way to measure the solubility of a solid. This lab can be replicated for any solid with the same procedure, thus it gives us a method to calculate solubility. The two solids we tested in this experiment were NaCl

Bitz Language Arts March 24 Chelmno Concentration Camp The first concentration camp was established on December 7,1941 and that’s when the first victims of the extermination were killed. The Chelmno concentration camp killed all the Jews in the area besides in Lodz. Knowing where and when it was made, and what its purpose was, and how it affected Jews and others in it, can allow us to better understand the Chelmno death camp. The Chelmno concentration camp was made in Chelmno which was roughly

effects of various solute concentrations on rate of osmosis in dialysis bags. The hypothesis was that the rate of osmosis would increase as solute concentration increase. Bag 1 was the only isotonic bag, due to the water flowing evenly inside and outside of the bag. Bags 2-4 were hypotonic and were exposed to a hypotonic environment causing the water to flow inside the bag, where there were more solutes. The water moved inside the bag to try to balance the solute concentration on both sides of the membrane