Sodium hydroxide

1-10 and 110, respectively are presented3-4. Cellulose I is the most prevalent form in the nature and it occurs in two allomorphs Iα and Iβ. Cellulose II is the crystalline form that emerges after re-crystallization or mercerization with aqueous sodium hydroxide, and it is thermodynamically the most stable form. In cellulose I the chain orientation is exclusively parallel, whereas in cellulose II the chains are arranged in an antiparallel orientation.1, 5. Since polymorphism is present in the…

Abstract: In this lab our main objective is to find the empirical formula of MgO, magnesium oxide. To do this first we have to make sure when we burn Mg in the crucible and it reacts to with O. This lab experiment Mg is complicated by another factor. Mg is so reactive that it reacts with N in the air so some of the Mg which is suppose to react with O will react will N instead. This obstacle can be overcome by simply adding water to the Mg3N2 to yield MgOH2 and NH3. This will undo the reaction so…

The total change in energy is equal to the sum of the net reaction that is Hess’s Law the way I see it. It is important because it shows how energy is moved whether absorbed or released which is critical in science where logic and reason define all knowledge derived from the implications of science. Hess’s Law is used to determining difficult to measure energy changes such as the generation of hydrogen as a clean fuel in the example given in chem wiki (Shelly Cohen October 02 2013). It is also…

Preparing Dilutions of the Silver Nanoparticles 1. Gather all materials. 2. Put on a pair of disposable gloves. 3. Make a paper towel damp with some 70% isopropyl rubbing alcohol. Wipe down the work surface with the rubbing alcohol-dampened paper towel. 4. Using a permanent marker, label the five baby food jars #1 to #5. 5. Using the 25 milliliter (mL) graduated cylinder, measure and pour 22.5 mL of distilled water (from a new, unopened container) into each of jars #2, #3, #4, and #5. 6. Using…

How to choose the best lash extension training course for you? Description: the artificial eye lashes are created in order to increase the beauty of a woman’s eye. In order to get trained in this, you can join the best eye lash extension training courses. Know how to select one. There can be a plethora of choices in eye lash extension training course, but in order to choose the best one from there, you need to consider your objective and requirements properly. There are various sources from…

During the winter in some places it can get very cold, and it might even snow. People put many different things on the ground to make the snow melt, but which one really melts the snow the fastest? Does ice melt fastest with salt, sugar, or sand. There are many things that can solve this question. In order to see if something is soluble it needs to be mixed with a solvent (water). To be soluble means that it is able to be dissolved. There are three different possibilities that can happen.…

I. Science fair Question What material will make ice melt fastest? II. Background Research Did you ever wonder what makes ice melt fastest? This research paper is going to talk about how ice melt works. Terms that will be discussed in this paper will include freezing point, Phrases of matter, freezing point depression, and solution. Freezing point is the point when water turns into ice (What Makes Ice Melt Fastest). If you have ever lived in a cold climate, you have most likely have seen…

Background: Isopods, or what are often called pill bugs, are crustaceans. Isopods live in damp environments. They can be found under rocks, logs and in soil. In this lab, 10 isopods were given a choice between salt water or regular water chambers to test their preference. The results were recorded every 30 seconds over a period of 10 minutes. Problem: It is known that isopods have a preference for moisture.This lab will specifically test whether or not an additive will affect a pill bug's…

boring. It is a colorless solid, but looks can be deceiving. This can make us lose too much weight or just completely lose our appetite. Humans have to enjoy this while they can, because they will not want anymore of it when they are done eating the sodium diacetate. This gets inserted into hot dogs to help control our PH levels. It also helps certain types of mold not grow on the hot dog. There are no worries about mold on our hot dogs and PH levels being messed up. Hot dogs are very unhealthy,…

The safety of local schools seems to be a top priority with the government. After all, the children are our future. Considering that, there is something we could do to ensure this safety. Every classroom in this school district, even America, should by law contain a fire extinguisher. Fire extinguishers have many uses that can benefit the safety of the students. First and foremost, they can be used in defense of school shooters. They are also cheaper and more unproblematic than guns. Lastly,…