sand‚ sodium chloride and calcium carbonate then calculate the percentage by mass of each component recovered from the mixture. The other purpose of this experiment was to show us the students the concepts associated with physical and chemical properties of substances. Me and my lab partner‚ obtained a mixture of a un known proportion from the instructor and then flow the guide line in our lab manual to separate the mixture by applying the separation method motioned in our lab manual pages 33-40
Premium Chemical substance Mixture Chemistry
classify matter. (Homogeneous‚ Heterogeneous‚ Mixture‚ Pure Substance)? HOMOGENEOUS Matter that is made up of the same or alike particles Can’t see what makes it up Looks uniform HETEROGENEOUS Matter that is made up of different types of particles Can see what makes it up Mixture A material made up of two or more substances that can be easily separated Either Heterogeneous or Homogeneous Ex: Salsa‚ Cake batter‚ pizza‚ soda Pure Substance Classification of matter with a fixed composition Only
Premium Chemistry Solubility Solution
with chemical. Sensible shoes are required when working in the lab. Must be able to know the accident and safety equipment is kept All or any accidents must be immediately be reported. If any hazardous is spilt accidently on you directly flush or wash yourself with water for about 15minutes. All concentrated acids and bases are always in the fume board in every lab. Waste always stored in the lab Liquid waste must all have secondary containment adequate for the full volume of waste. Chemicals must
Free Recycling Waste Chemistry
the unknown component of Panacetin. Theory: Panacetin is an analgesic (pain reducing) and antipyretic (fever reducing) drug that is sold in drug stores. However‚ there is a suspicion that this bottle may be counterfeit‚ not containing the chemicals that it should. Panacetin should be made up of about 50 percent of the unknown component that we previously separated out of Panacetin for testing. We suspect that this unknown compound is either acetanilide or phenacetin‚ both of which can be
Premium Temperature Chemical substance Mixture
finding out things we do not know. Most materials in our world are mixtures. Very few materials are pure substances. The art of separating mixtures is important because it enables us to isolate pure substances. Mixtures are either homogeneous or heterogeneous. To separate a mixture there is not only one‚ but several different methods used. A mixture is a physical blend of two or more substances. An important characteristic of mixtures is that their composition may change. There are two types of mixtures
Free Mixture Separation process Chemical substance
Chapter 2 The Chemical Context of Life PowerPoint Lectures for Biology‚ Seventh Edition Neil Campbell and Jane Reece Copyright © 2005 Pearson Education‚ Inc. publishing as Benjamin Cummings • Overview: Chemical Foundations of Biology Copyright © 2005 Pearson Education‚ Inc. publishing as Benjamin Cummings • The bombardier beetle uses chemistry to defend itself Figure 2.1 Copyright © 2005 Pearson Education‚ Inc. publishing as Benjamin Cummings • Concept 2.1: Matter consists
Free Atom Chemical bond
rabbits‚ rats‚ monkeys‚ and other animals die in lethal dose tests performed in many states around the United States. During a lethal dose test‚ the experimental substance is forced into the animals throats‚ or is pumped into their stomaches by a tube sometimes causing death by stomach rupture or from the sheer bulk of a chemical dosage. Substances are mixed in lab chows‚ injected under the skin‚ into a vein‚ or into the lining of the abdomen‚ they are often applied to the eyes‚ rectum‚ and vagina or forcebilly
Premium Experiment The Animals Chemistry
chromatography/mass spectrometry is used to test hair and urine samples of possible drug abusers or job applicants‚ and it is the best method for the testing of drug use. Gas chromatography and mass spectrometry are two different methods for identifying chemical substances‚ and the two instruments have be coupled together to perform a highly complementary analytical function. The gas chromatograph and the mass spectrometer have theories behind how their techniques work‚ and specific forensic applications for their
Premium Chromatography Mass spectrometry Gas chromatography
Unit 2 Home Labs - KEY Goals: Read Safety Perform Changes: Physical or Chemical Lab Perform Special Physical Properties of Matter Lab Perform Paper Chromatography Lab Turn-in: 1) Changes: Physical or Chemical Lab - Completed Procedure / Observations‚ questions‚ and a written description of most important concept that you learned in the discussion section. 2) Special Physical Properties of Matter Lab – Completed Procedure / Observations‚ questions
Premium Oxygen Carbon dioxide Iron
a reaction. Moreover‚ it also tells you how a particular mixture of chemicals will react. This is because chemical reactions always occur in the direction which will make the ratio of their products to reactants equal to the equilibrium constant. In chemistry‚ Le Chatelier’s principle‚ also called Chatelier’s principle or "The Equilibrium Law"‚ can be used to predict the effect of a change in conditions on a chemical equilibrium. The principle is named after Henry Louis Le Chatelier and sometimes
Premium Chemical equilibrium Chemical reaction