Thiosulphate solution

Chemical Equilibrium Alvin Garcia Formal lab report CHM 4610 L Table of Contents Cordoba 2 Page. Name, student ID, course number, date, report, title, section, Instructor’s name....... 1st Table of Contents…………………………………………………………………… 2nd Purpose……………………………………………………………………………… 3rd Introduction………………………………………………………………………….3rd, 4th, 5th, 6th Procedure…………………………………………………………………………….6th, 7th, 8th, 9th

Garcia 1 Chemical Equilibrium Alvin Garcia ID 3256622 Lab partner: Allison Galea, Valentina TA: Lissette Lozano-Lewis Formal lab report CHM 4610 L 07/14/15 Table of Contents Garcia 2 Page. Name, student ID, course number, date, report, title, section, Instructor’s name....... 1st Table of Contents…………………………………………………………………… 2nd Purpose……………………………………………………………………………… 3rd Introduction…………………………………………………………………………

The viscosity of different formulation at 10% water as follows, F1 (28±6.08 Cp), F2 (257±12.12 Cp), F3 (181±23.26 Cp) and F4 (141±29.82). This might be to the semisolid characteristics of Cremophor RH while T80 is liquid at room temperature [36]. It was stated that the introduction of Cremophor RH surfactant into the interface film increases progressively a number of ethylene oxide units available for bonding with the surrounding water molecules, providing a much higher extent

discovered by RJH Dutrochet in 1826, has been a significant area of interest in biology since. Osmosis is the process of diffusing water molecules through a selectively permeable membrane to dilute solutions with high concentrations of solutes until that solution has the same concentration as the solution on the other side of the membrane (Freeman, n.d., p. 96-99). An important component of osmosis is diffusion, which is when molecules or ions in the presence of a concentration gradient move from

Testable Question: If iodine diluted in water (iv and solvent) is put in a plastic baggie (control) how will diffusion occur while put in a beaker with diluted cornstarch (dv and solute)? Background research: Iodine is an indicator for cornstarch and will turn purplish-black when reacting with it. In this case iodine is the solute and cornstarch is a solvent. Diffusion is where molecules go from an area of low concentration to high concentration until molecules are evenly spread out. Plastic is

to understand osmosis, people must understand the different types of concentrations that can be present within solution. One of them is an Isotonic solution where the concentration of dissolved particles is equal to that of a cell’s. Another is a hypertonic solution where there is a higher concentration of dissolved particles then inside the cell. And lastly there is a hypotonic solution where there are less dissolved particles than inside the cell. As dissolved particles move to a region of lower

the freezing point of solution, different solutes are dissolved in solvents. When a solute is combined with a solvent, such as dissolving sugar (solute) into water (solvent), a solution is formed. The process of decreasing a freezing point of a liquid by dissolving a solute in a solution is referred to as freezing point depression. The freezing point is a colligative property, which means that the freezing point depends on the number of solute particles dissolved in a solution. For example, CaCl2

for freezing to slow while not affecting the rate of melting. This phenomenon is also referred to as freezing-point depression. As the molality, or the amount of solute (ex: salt) in a solution (ex: salt-water) is increased, the chemical potential of the solution decreases causing the freezing point of the solution to also decrease (Echipare & Harju, 2015). However, one might ask why salt is the specific solute used to melt ice on roads, when freezing-point depression applies to many combinations

oral and parenteral formulations to improve dissolution of poorly soluble drugs from solid-dosage forms. Povidone solutions may also be used as coating.

Purpose : The experiment this week had two different purposes. The first is to teach us about freezing points. This lab was designed to show us the freezing point of a pure solvent, in comparison to a solvent in a solution with a non-volatile solute. The second goal of the experiment is to teach students about osmosis. In the experiment, we got to observe osmosis as well as understand dialysis. Procecure : Part 1. Colligative Properties 1. Create a water bath