Chemical compound Essays

Chapter two discussed chemical compounds and their different representations whether naming and or through formula format. From such information, the amount of atoms, moles, and or determining charges can be found. All formulas can convey a limited amount of information depending on which structure has been selected to represent the compound. Compounds are usually shown by a chemical formula. Once compounds have bonded through the attraction of protons and electrons, if the bond is ionic or covalent

Chemistry, compounds are defined as any substance that is composed of atoms of two or more elements that are combined in fixed ratios. Compounds can often be reduced in order to separate their elements and study their properties. Compounds such as water (H2O) and Carbon Dioxide (CO2) for example, both contain oxygen and can therefore undergo a process of decomposition that will isolate the elements in order to calculate the quantity of each element and molecule present in the compound. Any compound with

Identification, Properties, and Synthesis of an Unknown Ionic Compound (Magnesium Chloride) Kaelyn O’Neill Chemistry 1010 Laboratory, Section 03 Instructor: Khushi Patel October 12, 2014 My signature indicates that this document represents my own work. Outside of shared data, the information, thoughts, and ideas are my own, except as indicated in the references. I have submitted an electronic copy through Blackboard to be scanned by TurnItIn.com. In addition, I have not given

The purpose of this lab was to learn how to design a lab and different separation techniques. This was learned by separating a mixture. The purpose of the lab is important because it gives a better understanding on how to design a lab and separate a mixture. The scientific method played a major role in the lab as it helped create the lab. Background information was gathered on each of the substances (salt, sand, iron filings, poppy seeds). Using this information helped to form ideas on separation

The aim of this experiment is to determine the chemical nature of an unknown solution by examining how it reacts with different indicators and comparing the results obtained from these reactions to those of the same indicators with several different, known, solutions. General Background: There are many different macromolecules present in nature, the most predominant molecules found in living organisms. In analytical chemistry, indicators are chemicals (reagents) that help identify the composition

melting point than Na. Reason: Compare the number of delocalized electrons. Type 2: ionic compound vs ionic compound Example: Explain why NaF has a higher melting point than NaCl. Reason: Compare lattice energy. Type 3: simple molecule vs simple molecule Example: Explain why H2O has a higher melting point than H2S. Reason: Compare the relative strength of the intermolecular forces. Type 4: ionic compound vs simple molecule Example: Explain why NaCl has higher melting point than H2O. Reason:

techniques such as recrystallization, extraction, melting point, and acid-base reactions. From this, the group to which these two compounds belong to had to be determined. These groups are: Carboxylic Acids, phenols, and neutrals. By determining the melting points of the two unknown compounds, these values were compared to the values of melting points in the chart and the proper compound was selected. For the case of this experiment, the unknown mixture contained, 4-methylbenzoic acid. The neutral was not

Ceylon Cinnamon versus Cassia Cinnamon Cinnamomum verum which means “true cinnamon” is a lighter, brighter spice that is obtained from the inner bark of a tree native to Sri Lanka. Ceylon Cinnamon, as it is more commonly known as, is a milder spice as compared to the more regularly used Cassia Cinnamon. Although many countries in South-East Asia grow cinnamon, Ceylon Cinnamon is the world’s best. It’s mild, smooth aroma and taste is perfect for gourmet, desserts, smoothies, flavoring meat and basically

Twix is a brand of candy that is owned by Mars Incorporated. The main ingredients needed to make the product are milk, sugar, chocolate, cocoa butter, soy lecithin, flour and palm oil. The chocolate and cocoa butter come from the cocoa bean. The cocoa bean comes from a cocoa tree, and is grown by farmers around the equator (1). After the beans are fermented and dry enough, the cocoa farmers, the cocoa farmers will bring them to cocoa processors (1). Next the beans are packed into sacks and containers

Chem 51LB Report Ngoc Tran - Student ID # 72048507 The purpose of this lab is to examine the composition of three components of gas products of elimination reaction under acidic condition by conducting the dehydration of primary and secondary alcohol, and under basic condition by conducting the base-induced dehydrobromination of 1-bromobutane and 2-bromobutane. Then gas chromatography is used to analyze the composition of the product mixtures. Gas chromatography (mobile phase) is used to analyze

this test left 3 possible compounds; NaHCO₃, Na₂CO₃, and CaCO₃. Next the compound was tested with iodine and the solution turned yellow showing that now there was two compounds that could be the identity of unknown powder E; NaHCO₃ and CaCO₃. After that compound E was tested for being soluble in water, the powder was soluble, this proved that unknown element E is NaHCO₃. Unknown Element K was also first tested following the steps for the phenolphthalein test and the compound turned clear, this test

Unknown compounds verification Introduction: In Project 3 we are going to test an unknown compound and there are several different ways that can help us to identify the Unknown substance. And there is some pre-lab information that found in the internet. By Experiment 3: Identification of a Substance by Physical Properties “Every substance has a unique set of properties that allow us to differentiate one from another. These properties can be classified as either physical properties or chemical

an Unknown Compound using Quantitative and Qualitative Analysis Lauren Tremaglio Chemistry 1011 Lab, Section 16 Instructor: Steven Belina October 3, 2014 Our signatures indicate that this document represents the work completed by our group this semester. Experimental Design and Discussion of Results The objective of this experiment was to identify an unknown compound through quantitative and qualitative analysis. In order to find the identity of the unknown compound, an initial

Final Essay Questions Pure substances are either in the form of compounds or elements. A compound can be decomposed by ordinary chemical means and are made up of two or more elements. An example of a compound is water, which is H2O. Elements, on the other hand, are pure substances that cannot be broken down because they are in their purest form and an example of this would be gold, which is Au. In contrast, mixtures can be made up of homogenous or heterogeneous mixtures that can be separated. In

An unidentified compound was found in a landfill and the group was ordered to investigate and identify the unknown substance. Figuring out the physical and chemical properties was needed in order to make predications on how the compound might behave. Syntheses of the compound were devised to figure out cost effectiveness, safety, and potential yield of the newly identified compound. Final results established that the unknown compound was NaCl. (1) Initial observations concluded that physically the

whether an object was an element, component, or a mixture and whether it was a homogeneous and heterogeneous was clarified. An element is made up of only one type of atom and no other. It is also known as pure substances.  Elements are different from compounds and mixtures since they both have two or more atoms while elements contain one of the pure elements. A material is an element if found in the Periodic Table of Elements. Sulfur, lead, tin, aluminum, copper, and helium, which were part of the activity

Introduction: In this experiment, we are required to discover the 2 unknown chemicals provided by the teacher through the usage of different lab equipment and scientific procedures to conclude what the unknown substances are. The findings/results will be presented in a qualitative table and further discussed. There are 6 possible substances that the 2 unknowns could be. If the substance is benzoic acid then it would have to pass the organic solvent test because it dissolves in only organic solvents

During the circle time, Caydence sing a song along with her peers, ABC Song, “A,B, C, D, E, F G, H, I, J, K,….O,P, Q, …., my A, B, C, ne…..sing wit.. me.” Next, the teacher uses the cards of shapes. When the teacher shows cards of shapes and everyone says the names of shapes, Caydence says, “Circle, star, square....”: she does not say all names of shapes. Then the teacher shows the cards of colors, Caydence says, “Red, blue, yellow, green, orange, pink, purple…” as the teacher shows the cards:

part of everyday life and the reason to investigate unknown solids is to ensure we're not in contact or consume dangerous chemicals .Other people were given an unknown substance and were trying to figure out what there unknown solid was as well and there was duplicates of the same solids.The goal is to find the group that best matches our result and compare to see if the compound is the same. Introduction The physical property of the unknown substance given was a white clumpy powder

my research I found empirical formula and molecular weight of C25723 to find the molecular formula and I can use all the information I collected to determine my unknown volatile liquid C25723. Using molecular formula, I plan to look at “ChemExper Chemical Directory” website for more data. Once I have all of my data I will identify the volatile liquid C25723. To determine the name of my volatile liquid I had to find the empirical formula and to find the empirical formula I first had to do calculations