Osmosis Lab

Introduction:

During the Osmosis activity we were expected to complete an experiment to determine the impact of temperature and concentration on osmosis. To determine the effect of temperature on osmosis we were require to test three dialysis bags filled with syrup. Each bag was first measured for initial weight, then assigned a temperature at which that bag will be tested in. We filled three beakers with the same amount of water, but at different temperatures. The three variations of temperatures for the water were hot, room temperature and cold. Before placing the dialysis bags into their assigned beakers we took the temperature of each beaker. We then timed the bags in intervals of 5mins, 10mins and 20mins while checking their weight in-between

The higher the levels of concentration were, the more significant the weight gain was. This meaning that high concentration creates more pressure resulting in weight gain. This pressure is created due to the attempt to diffuse rapidly to a lower concentration. The higher the concentration the bigger the urge to equalize. Table 2 shows the raw data from the experiment which allowed us to track that higher concentration effects osmosis. With this raw data I have created a graph to demonstrate a visual to allow one to see the increase of weight gain between the 3 different concentration levels. The graph in figure 2 displays that the lowest amount of weight gain was in the lowest concentration bag and increased with each increase of

I had predicted that with higher temperatures of water the higher the rate of osmosis would be. I also predicted that the higher the level of concentration the higher the rate of osmosis would be. The raw data in tables 1 and 2 were analyzed and osmosis was impacted by temperature and concentration levels. The reason that these condition increase the rate of osmosis is because they cause more pressure. The high concentration and the high temperature cause more of an urge to equalize resulting in more pressure. This new pressure created more weight, which increased the bar in figures 1 and 2 showing the rate. The colder the temperature and lower the concentration the less significant the change was. This experiment was controlled by the initial weight of each bag and by the time periods for each test. Therefor the results are an accurate display supporting my hypothesis proving it