Organic chemistry

A clean flame test wire was inserted into 0.2 M NaCl and also placed on the flame reputedly. A bright yellow persistent flame was a positive test of sodium being presented, then repeat the same instructions for the unknown ion. After the flame test wire was clean 0.2M KCl was dipped into the flame resulted a lavender color after several trials as well as the unknown solution. 10 drops of 0.1M Ca(NO3)2 in a test tube and 2-3 drops of 1M Na2C2O4, a white precipitate of calcium was present. The…

http://www.sunriseopals.com Buying Opal Jewellery Opals are intriguing and delightful stones; however it can mistake looking for them. What is the distinction in opal jewellery between stone, doublets, and triplets? Is the smooth light stone more profitable then the dim green? What hues would it be advisable for me to search for? Here are a couple tips while picking opal: • Australian opal is by and large the best and where the greater part of the universes opal supply originates from. This is…

This disagreement was about the pigments located in the stems and veins of a plant and the pigments located in the green portion of a leaf. Jan believed that only the stems and veins contained all of the important pigments except for chlorophyll. She believed that the green portion of the leaf would not contain all these other pigments. Mark, on the other hand, believed that the same pigments were also located in the green portion even though they were not visible. In order to determine who was…

are a colorants derived from plants, minerals, and etc. Vegetable dyes from plants are the main sources of natural dyes. Different kinds of vegetables and fruits that have color can be used in this experiment which can be berries,leaves, and other organic sources. Our group used beets, spinach, and carrots as our natural dye. Material- There were a lot of different materials used for this dye experiment. During the preparation of the dye we used beakers, scissors, cheesecloth, and gloves. Then…

The purpose of this experiment was to ascertain an unidentified substance. The substance in question was a colorless liquid with an odor resembling acetone. To start with the Tollens’ test was conducted on the unidentified substance to differentiate between an aldehyde and a ketone. The results of the test were negative. This indicated that the substance under consideration was a ketone The next step consisted of determining the melting point of the substance, which was in the range…

Abstract: Using the PhysioEx.9.1 software, I ran Activity 4: Simulating Filtration lab to learn about the filtration of solutes in a membrane system. This experiment was conducted using four solutes: NaCl, urea, glucose, and powdered charcoal. The goal was to learn if any of these solutes passed through the three different dialysis membranes at varying pressures. Does increasing the pore size increase filtration rate? What effect will pressure have on the filtration rate? These are the…

Prac 18 – Reaction Rate of Notongooglenium – Angus Dally Research Question: How does the presence of a Notongooglenium oxide catalyst effect the rate of hydrogenation of ethenol (vinyl alcohol)? Aim The aim of this experiment is to find the effect of the manganese oxide catalyst, a similar compound to Notongooglenium Oxide, on the rate of hydrogenation of ethenol (vinyl alcohol). Introduction Notongooglenium Notongooglenium is a newly discovered element with an atomic number of 24.5. Due to its…

Lingrui Ge Lab report October 18, 2015 Experiment #5 Separation and Qualitative Analysis of Cations CHEM 1315-088  Purpose of the experiment: To identify the substances that are present in a mixture. Materials: Test Solutions and Substances 6 M hydrochloric acid, HCl Sodium bismuthate, NaBiO3 (s) 6 M nitric acid, HNO3 0.1 M potassium thiocyanate, KSCN 6 M ammonia/ammonium hydroxide, NH3 3% hydrogen peroxide, H2O2 6 M sulfuric acid, H2SO4 Sodium bismuthate, NaBiO3 (s) 6 M sodium hydroxide,…

Purpose: To find the pH of different household items and to see what substances are acids or bases. To see how different substances neutralize each other. Hypothesis: I hypothesize that cleaning products will be bases and foods and substances we ingest will be acids. Materials: • Oil • Finesse Shampoo • Anti Freeze • Drain Opener • Hand Soap • Vinegar • Oxy clean • Pine-Sol • Hydrogen Peroxide • Apple Juice • Ammonia Procedure: 1. All materials were gathered, and safety goggles were put on.…

Simple diffusion is a passive process involving the movement of smaller, nonpolar molecules moving across a membrane from a high concentration area to a low concentration area without any forces acting upon the substance. Facilitated diffusion is a passive diffusion process involving the transportation of large or polar molecules and ions across the cell membrane (which they cannot normally pass through) with the help of transport proteins. Because facilitated diffusion is a form of passive…