Chemistry Essays

The first thing to always remember when working in a lab is safety. The most important reason why you should always be safe is because many things in the lab can be harmful to you or the others in the lab. Machinery can go wrong, toxic substances may be spilled, …

I personally really like the Great salt plains state parkwildlife refuge.its a place where you can hunt,fish,camp,hike go on a driving tour and in some parts like the lake bed and the salt flats find selenite crystals.It is home to many animals and birds.But it was closed in 2007 for …

Diffusion involves the movement of solute particles across a selectively permeable membrane from higher to lower concentrations. A selectively permeable membrane allows only some thing to go through. Water and oxygen are examples of molecules that are able to go through the membrane by diffusion. The net movement of these …

(a) (2 pts) What are the features of an electronic balance? Include all of those discussed in the video. Answer: There were two features of an electronic balance discussed in this video. First there is the electronic read out which makes the measurement very accurate and the tare feature which …

Yeast fermentation is affected by temperature as an outcome of the many different temperatures that yeasts are exposed to. The accepted value for yeasts optimum temperature is approximately 66.667 degrees Celsius. If yeast is exposed to their optimum temperature, then this would create the most amount of fermentation. In this …

This experiment is being done to find out what happens to a carrot or a potato if you place them in two different solutions. Osmosis has a lot to do with this experiment and is the movement of water molecules from a higher concentration to a lower concentration. Osmosis only …

Liannys Polanco 02.05 Electron Arrangement and EMR: Line Spectra Lab Worksheet Before You Begin: You may either copy and paste this document into a word processing program of your choice or print this page. Procedure Access the virtual lab and complete the experiments. Part One (Flame Test): Create and complete …

Introduction – The objective of this lab is to better understand Stoichiometry by investigating sodium salts in carbonic acids. Stoichiometry is the study of the amounts of substances that are involved in reactions. This could be either before the reaction takes place or after the reaction takes place. For this …

ABSTRACT: The Rf values of seven known color dyes and three unknown samples were observed in order to compare results and discover the hidden identities of the three samples. Three solvents, H2O, Isopropyl alcohol, and a 2% NaCl solution, were introduced to the dotted chromatography strips to show three different …

Fracking is a very controversial topic of conversation that’s has been around for years, but has just recently reached the forefront of the environmental scene because of increase in its activity and added opposition against this controversial topic of retrieving natural gas. Fracking is defined as the process of drilling …