Aim-
The purpose of this experiment is to measure the effect of flow rates on distilled water by recording its volume every second.
Introduction-
The change of a rate of any quantity expresses to us in what way that quantity changes with time. A constant rate means that the change with time is at all times the same. A constant rate will always be results in a straight line graph. However, a variable rate would be in some form of curve.
An example of what type of flow test is used in a pharmaceutical industry or any other type of healthcare setting would the urine flow test. The way this is this test is done is by giving the patient a special funnel that is connected to a measuring instrument by which he urinates in that funnel. The amount of urine
…show more content…
Volumetric analysis is a method that measures the volume of a solution of a known concentration, this is used to decide the concentration of the analyte.
This report presents the measurements of distilled water while going down the burette. It is known that when opening fully the tap of the burette it will go down fast. In this experiment the dependent variables will be the distilled water flow rate and the independent will be whatever we have changed to make the flow rate differently. How far open you leave the tap open will determine the flow rate of the water.
My prediction of this experiment is that the results will be a minimum difference of 2-3 ml between each other at the beginning but when it comes down the middle there will be a difference of 4-5ml. This is because I believe that as there is more water at the start of the burette it will slow it down, but when coming down the middle it will go faster.
Flow rate = volume/ time
Q=V/t
The base unit for volume is m3, however in the experiment this unit too big so cm3 was used because the burette is measured in
That familiar fizzing you hear when you drop an Alka Seltzer tablet into a glass of water is the result of a chemical reaction, and chemical reactions are extremely prevalent when it comes to what living things do to carry out life processes. In addition, environmental conditions can alter the results of chemical reactions, and in this lab, we will be answering the
help give a better idea of how the rate of osmosis is affected by the
Regarding the densities of Coke and Diet Coke, I believed that the density of coke would be greater than the density of Diet Coke. Because the content of Coke contains more sugar than Diet Coke, it would contain more mass and since density is mass dependent, Coke would be denser than Diet Coke. From the results of the experiment, there was a slight difference between the densities of Coke and Diet Coke. The measurements obtained from the pipette and the graduated cylinder demonstrated that Coke is denser than Diet Coke while Diet Coke was shown to be denser than Coke using the burette. With the pipette, the average density of Coke is 1.02 and the average density of Diet Coke is 0.99. With the graduated cylinder, the average density is 0.976968 and the average density of Diet Coke is 0.95. With the burette, the average density of Coke is 0.99 and the average density of Diet Coke is 1.0. Among the three instruments, the most precise was the graduated cylinder and the most accurate was the volumetric pipette. Since density is defined as mass/volume, changing the volume of Coke or Diet Coke would have changed.
3. Add on of the following volumes of distilled water to the test tube, as assigned by your teacher: 10.0mL, 15.0mL, 20.0mL, 25.0mL, 30.0mL. (If you use a graduated cylinder, remember to read the volume from the bottom of the water meniscus. You can make more a more accurate volume measurement using either a pipette or a burette.)
The experiment is aimed at giving a better understatement of osmosis process and the different conditions in which osmosis occurs.
In order to find a good set of results for this experiment I need to
Investigate the Osmosis of Potato Cells in Various Salt Solutions. Introduction I have been asked to investigate the effect of changing the concentration of a solution on the movement of water into and out of potato cells. I will be able to change the input of my experiment. The input variable is the concentration of the solution.
Variables --------- During the experiments, the water will be heated using different spirit burners containing different alcohols. I will be able to change different parts of the experiment. These are the. Volume of water heated:
weight of the fluids used is 53 cm3. The density of water is 1g/cm3 so
However, the method of volumetric analysis is highly dependent on a pure standard which the amount of substance present is accurately known. Prior to estimation of the acetic acid, sodium hydroxide (NaOH) was used as the standard solution. Thus, the concentration of the sodium hydroxide (NaOH) was first determined because sodium
The sample that had the highest permeability was the gravel. Because the size and abundance of pores in the gravel sample, water passed through it, almost, unimpeded. The pores of the rocks that composed the gravel sample did retain 16 percent, or 8ml, of the 50ml of water used. In addition, these large pores allowed a drainage rate of .186, which was the quickest of any of the samples in this experiment. If the pores were smaller, water would permeate slower and have a higher water retention
...y for very short duration. The attempt has to be made to measure as many high flows as possible at all the hydro-stations.
Pumping test is the most reliable method for determining the hydraulic conductivity and tracer test is the most reliable way to determine the hydraulic connection. Pumping test involves imposing a perturbation such as pumping in a well and measuring the response of the aquifer, for example in terms of head variations (Renard et al. 2009). Those data are then interpreted with the help of analytical or numerical models in order to infer the hydraulic properties (hydraulic conductivity, transmissivity and storage coefficient) of the aquifer (Renard et al. 2009).
A simple way for distillation water is a solar still which uses sun’s heat to derive evaporation from humid soil and atmospheric air to cool a condenser layer. The energy of sun heats water to evaporation point. When the water evaporates, vapours of water increases, condensing on the glass surface for collection. In a double slope solar still, solar radiation passes both sides of the glass cover. This energy coming from the sun is almost absorbed by the black painted basin while it is partially absorbed in the thin layer of salt water. Thus, the solar energy heats the saline water and basin. The heat is convicted from the black surface into the saline water and the saline water temperature raises.