Essays on concentration
The aim of this experiment is to find the sum of sulfate by hydrometric analysis. The sum of sulfate is determined quantitatively as Ba sulfate. BaSO4. by hydrometric analysis. For the experiment. a dilute solution of Ba chloride was easy added to a hot unknown sulphate solution somewhat acidified with concentrated HCl. The precipitate is […]
Sodium Borate, also known as borax, is commonly used In household products such as creams, baths and skin products. It affects the molecules In the formula and makes them work better together. Introduction The borate Ions In sodium borate can form cross-links between poly (ethanol) chains. The water from the two solutions Is trapped between […]
The Effect Of Varying Enzyme Concentration On The Breakdown Of Hydrogen Peroxide In The Presence Of Catalase Grade: 18/18 Words: 3000 Hypothesis – Hydrogen peroxide will breakdown to oxygen and water in the presence of Catalase. The reaction will increase with increasing enzyme concentration when molecules of hydrogen peroxide are freely available. However, when molecules […]
Method 1- Titration •For the titration, it is necessary to dilute the Sodium Hydroxide so that it is an easier concentration to titrate. Using a 25cm3 pipette, washed out with some of the NaOH solution, transfer 25cm3 of the solution to a 250 cm3 volumetric flask, and fill to the line with distilled water. The […]
The paper is an evaluation report on the partial molar volume, surface tension, and viscosity data of the cyclohexane-benzene binary system, a mixture of nonelectrolyte liquids.Based on many studies, the benzene-cyclohexane system is a well-established as a test system for excess molar volumes measurement devices. This excess molar volume is directly related with the partial […]
The investigation which I am going to be carrying out is to estimate the concentration of the cytoplasm of potato cells. I will do this by investigating using the movement in and out of the potato cells through Osmosis. Osmosis is the process whereby water molecules pass through a semi-permeable membrane from a high concentration […]
The best way to determine the concentration of a solution is by a titration, and as limewater (Ca(OH)2(aq)) is a base an acid/base titration would be most useful:Ca(OH)2(aq) + 2HCl(aq) 2H2O(l) + CaCl2(l)Precautions to take: working with chemicals, e.g. corrosive hydrochloric acid, means goggles should be worn as well as an apron to protect clothes […]
The volume of iodine solution needed to neutralize the sodium thiosulphate. You simply titrate the sodium thiosulphate against the solution of iodine using starch solution as an indicator. Then when you have calculated the concentration of the sodium thiosulphate can use it in turn as a standard solution, to find the concentration of the other […]
Iron is a transition element, and all transition elements may be found in a variety of oxidation states, for example, iron exists as both, Iron(II) and Iron(III). These kinds of elements can react with both oxidizing and reducing agents due to the fact that they can be converted from one oxidation state to another. Working […]
For this investigation, we are going to find out how different enzymes (in this case, trypsin) concentration in a solution would affect the rate of which solute (Casein) is broken down. I think enzyme concentration would definitely have an effect on the rate of reaction. My hypothesis is that increasing the concentration of trypsin would […]
I predict that if I increase the temperature of the orange juice, the concentration of the orange juice will decrease. This is because vitamin C is a fairly unstable molecule, and the greater the heat the more vitamin C molecules will be broken down. It takes activation energy to break down bonds and as we […]
This investigation is basically about milk coagulation of different milks. Also it includes why each milk type has potentially different milk clotting times using vegeren and how the concentration of vegeren is going to affect the different milks. Vegeren is a vegetarian substitute for rennet, which is also a milk-clotting agent. There are many differences […]
A balanced equation of the reaction:Ca(OH)2(aq) + 2HCl (aq) CaCl2(s) + 2H2O(l)The aim of my experiment is to determine the concentration of a limewater solution which contains approximately 1g dm-3 of calcium hydroxide by using hydrochloric acid as a reagent in a titration.Safety ProceduresThe following safety procedures should be notified first to ensure the safety […]
Have you ever wondered how industries are determined oligopolies or monopolies? In this paper I will discuss how concentration ratios are used to determine total market shares within four specific industries. I will also discuss the levels of competition within those industries and how oligopolies can benefit society. Case, Fare, and Oster defines concentration ratio […]
Located just fifty miles from the renowned Holocaust concentration camp of Auchwitz is another camp of equal status. Ravensbruck was the only major concentration camp for women during World War II. It was established by the SS leader Heinrich Himmler in November of 1938. He chose to locate his new camp at a small town […]
