Science – Final Submission Extended Experimental Investigation How temperature affects the solubility of salt crystals in water Sanjitha Dissanayake 10H Introduction: Intermolecular forces hold molecules together when they are in solid or liquid state. However, water has the ability to dissociate many salts and ionic compounds. This is called dissolving. When NaCl is added to water, it dissociates into the ions; Na+ and Cl- . The positive sodium ions are surrounded by
Solubility Enhancement of Fenofibrate by Solid Dispersion Technique 1. Introduction: Oral route of drug administration is one of the preferable methods of drug delivery due to its convenience, ease of administration and a more effective medication system than other drug delivery systems in terms of patient’s compliance. However, not all drugs are of same solubility; some poorly soluble hydrophobic drug often generates certain complexities in formulation development as well as other clinical research
unknown substances, the experimenter must perform multiple tests. Such as solubility tests (water and hexane), melting point, conductivity, and bond type. The solubility test will narrow down the list of potential unknown substances, given in the packet, by considering the characteristics of the unknown substances. For instance, unknown substance #2 was tested in both water and hexane solubility; at the end of the trial of solubility tests of unknown substance #2 resulted only soluble in hexane. Besides
The purpose of this experiment is to determine the solubility of a salt, potassium chloride. MATERIALS Borosilicate glass beaker (600 mL) Weighing dish Gloves Apron Tap water 4 Test tubes 6” ((#1-4) marked with sharpie marker) Thermometer Test tube rack Graduated cylinder, 10 mL Stirring rod Scoopula Digital Scale Distilled water Tongs Potassium nitrate salt (substitute: potassium chloride) 4 or 5 coins
Solubility is the property of a chemical substance, in any state, to dissolve within an adequate solvent. Many chemical experiments in the lab will contain a solute in a solvent, therefore important to know the exact reactions that will ensue. Symmetry and polarity play crucial roles in the occurrence of solubility. A primary rule of “like dissolves like”, describes how molecules with the same symmetry are more likely to be soluble with each other. The same rule can be attributed to the tendencies
Logs Tuesday 26/04 Today, I finished my proposal for my EEI and started researching for calculations to predict the solubility of my solutes. My decided solutes are sugar, salt and copper sulphate pentahydrate. I decided I would be using 100mL of water as my solvent due to the abundance of solutes available and that fact that 100mL is a nice, easy number to work with. I also spoke to Mrs Rach and she informed me she has a surplus of copper sulphate so I don’t have to be careful with how much I use
Solubility and How it is Effected by pH and Polarity By: Brian Hartman September 24, 2015 Chapman University Organic Chemistry 230 Lab Introduction: Different organic solvents can be used to isolate and purify organic compounds due to differences in the compounds solubility. The solubility of an organic compound and its interaction with water plays a key role in how our bodies function. These factors also effect how a target compound is extracted. One example of this is Aspirin. Aspirin
The purpose of this experiment was to apply the understanding of basic solubility principles and precipitation reactions to identify two unknown cations in a given solution. The first two processes involved adding various acids and basis to the unknown solution to observe different precipitation reactions. The unknown solution contained either silver or lead and either barium or calcium. For unknown solution one, adding a sample of hydrochloric acid to the unknown solution started the experiment
Objective: The purpose of the lab was to see if when two compounds were combined a reaction would occur. If the reaction did occur we wrote a balanced chemical equation of the products and reactants with the correct solubility rule. Safety: • wear protective eye goggles • have long hair tied up • wear close toed shoes • Wear correct clothes(not baggy) MSDS safety precautions: 1. Sodium Carbonate (Na2CO3): Sodium Carbonate is harmful when it is inhaled. It can cause irritation when touched to
Increase solubility/ Dissolution: Various techniques have been used in attempt to improve solubility and dissolution rates of poorly water soluble drugs which include solid dispersion, micronization, lipid based formulations, melt granulation, direct compaction, solvent evaporation, co precipitation, adsorption, ordered mixing, liquisolid compacts, solvent deposition inclusion complexation and steam aided granulation. In these techniques carrier plays an important role in improving solubility and dissolution