Physical chemistry

at Newnham College, Cambridge, in 1938 and she studied chemistry. In 1941 she was awarded Second Class Honors on her finals, which was like a bachelor's degree qualifications for employment. She worked as an assistant research officer at the British Coal Utilisation Research Association. And during that time she studied the porosity of coal. The information she gathered she used as the basis for her 1945 Ph.D. thesis “the physical chemistry of solid organic colloids with special reference to…

Chemistry Honors Mrs. Moreno Period 5 INTERPRETING THE PERIODIC TABLE Partner’s name: Faranak Hajikhan, Pablo Moncada, Albina Contreras and Karla Santos Title: Interpreting the Periodic Table Date: 12-18-14 Subject: Honors Chemistry / Period 5 Introduction: The periodic table is a table of the chemical elements in which the elements are arranged by order of a atomic number. The periodic table also has a special name for its vertical columns. Each…

unique history are three phrases that describe many things. However, all three combined only seem to describe Birthstones. Birthstones are amazing objects that affect our economy in many ways. More importantly, birthstones have a deep connection to chemistry and science. Due to their chemical properties, birthstones can also be used for medicinal purposes and healing techniques that have helped humans throughout time. Overall, birthstones contain many disciplines and the concept is one of the…

to the theoretical percent water was most likely because we did not measure exactly two grams of the unknown. Our percent error was 2.5 % due to the mass that we measured in the beginning of this experiment. Finding unknowns is very crucial to chemistry because if there is a problem, for example, of…

In this lab we took a dull penny from before the year 1970 and changed its color to a shiny gold with the help of chemistry. First, we used a vinegar and salt mixture and scrubbed it onto the penny. This process cleaned all of the dark corrosion spots away and made the copper color shine like new, which then allowed us to have a clean surface to experiment on. This was mostly a physical change but their was a slight chemical reaction because of the acidity of the vinegar. We then heated granular…

Rachel Guest January 25, 2018 CHM 3050-01: Chemistry Seminar The Mystifying Case of Bengü Sezen In 2000, Bengü Sezen started her doctoral studies at Columbia University. “For her doctoral work at Columbia, Sezen claimed to have developed a method for selectively activating C-H bonds, a technique commonly used to functionalize hydrocarbons” (Schulz, 2011). This research topic became the basis for many of the papers she and her mentor, Dalibor Sames published in the Journal of the American…

Gugliotta 9/29/14 Chemistry Period 8 Title: Observations of a Candle Research Question: Observations are needed to explain the physical world. Introduction: Candles are very useful in science and society. They help provide light and…

Iodine clock reactions also known as Landolt Clock Reactions are one of many types of reactions in Chemistry. Clock reactions are an appealing way to show different type of chemicals having a reaction towards each other. This type of chemical reaction shows the demonstration of chemical kinetics. Iodine clock reactions were discovered by Swiss chemist Hans Heinrich Landolt in 1886. The procedure of conducting an iodine clock reaction consist of two colourless chemicals being mixed together.…

on temperature. Melting point range for unknown three that was lastly tested was matched to Acetaminophen by comparing their melting points. Introduction: Melting point is loosely defined as the temperature at which a solid becomes a liquid. In chemistry, melting point, also recognized as the liquefaction point, refers to the temperature at which the solid and liquid phases of a compound are equal. Melting points are used when deciding the purity of a…

The objective goal of this experiment is to identify a set of unknown liquids by measuring the liquids of three physical properties which consists of determining the density, solubility and boiling point of the liquids A, B, C and D. Ethyl acetate, methanol cyclohexane and acetone were the unlabeled liquids. In the data analysis the predictions came out to be liquid A for acetone, liquid B is for ethyl acetate, liquid C is methanol and liquid D is cyclohexane. Introduction and Experimental…