Sugar solution

The purpose of this experiment was to examine the permeability of the dialysis tubing using molecules of various sizes (iodine, water, glucose, and starch) and reagents to help identify the molecules in the solution. It was assumed that iodine, then water, followed by glucose and starch respectively, would have the most ease of movement, as they are in the order of size (least to greatest). Being an element, iodine is the most minuscule out of the four, as they are the building blocks for molecules

a semipermeable membrane which is a membrane that is freely permeable to water but is not freely permeable to solutes, the water moves from a dilute solution to a more concentrated solution (Karp, 2010). Both diffusion and osmosis are passive transport, energy is not used in the transport. In osmosis water moves across a membrane toward the solution of greater concentration, because the concentration of water is lower there (Martini and Bartholomew., 2007). Hypertonic is what the side with a higher

conditions that a cell may be subjected to in the cells physical environment. The cells may be isotonic, hypotonic, and hypertonic. Isotonic is when the cell and is environment have equal concentrations of solutes. Therefore cells in an isotonic solution do not experience osmosis. When the cell is hypotonic it has a lower concentration of solutes so water will move out of the cell. When the cell is hypertonic, it will have a higher concentration of solutes and water will move into the cell to

include Temperature, Concentration and Surface area to volume ratio. Temperature can affect the rate in which a solute dissolves in a solution, higher temperature faster rate of Osmosis. This is caused by the molecules movements being faster in higher temperatures. Concentrations are

which goes to show that there was error, however minimal. The hypothesis stated the the more hypertonic the sucrose solution, the less increase in potato mass there will be. It even suggests that mass might increase. The collected data shows, that the more hypotonic the solution, the bigger growth rate in the potato masses. However as we get to the last 2 trials, where the solution was becoming more hypertonic we can see the rate of growth drop, and decrease. To wrap up the experiment, we can see

investigates the different types of solutions: -unsaturated -saturated -supersaturated 1.2 performs an actual activity about solubility. 1.3 values the common solutions that can be found at home and can be used in daily living. 1. Learning Tasks 2.1 Topic: Solutions 2.2 Concept: The unsaturated solution has a less amount of solute to be dissolved. The saturated solution can hold no more solute to be dissolved. The supersaturated solution cannot hold more solute. 2.3 Materials

precipitated. If so, the solution would be heated to boiling point in a sand bath. The hot saturated solution was left undisturbed for a period of time, before the crystals formed. In case that the substance could not dissolve at room temperature, it would have to be heated and further observed. If the solid dissolved entirely, the substance was considered soluble in the hot solvent. On the other hand, if some but not all dissolved, it was noted as moderately soluble. Continually, the solution was allow to cool

This process relies on heating a solution to separate out the different components. This is done through the fact that each compound has a specific inherent boiling point, a temperature at which a liquid turns into a vapor. These vapors are then passed through a fractioning column. These

Investigation of Factors Affect Osmosis in Potatoes  Aim  The aim of the following experiment was to investigate the effect of  varying the concentration of sucrose solution on osmosis in a potato.  Preliminary Experiments  One preliminary experiment was done before the main experiment. From  the preliminary, we were trying to find out how osmosis actually  occurred in potatoes, and gave us a vague idea on what the main  experiment would be like.  This preliminary will aid my prediction

potato cubes were weighed, then added to 10% and 20% concentration NaCl solutions for 20 minutes and weighted again to calculate the mass diffusion. The tests undertaken with a high concentration of sodium chloride in full sun increased the osmosis rate as the solution was more hypertonic and kinetic energy increased the collision of molecules. This caused a greater amount of water to diffuse from the potato, into the salt solution, which improved the mass diffusion rate. To conclude, the results obtained