interesting chemistry (as you ’ll find about in this experiment). Have some fun and find out what color candle burns the fastest by conducting your very own candle race! Required materials 5 candles of varying colors‚ preferably white‚ pink‚ yellow‚ green‚ and blue (must be same brand and size) Ruler Marker or Sharpie Matches or lighter Scissors Clay‚ Putty‚ or Play dough Ceramic plate Stop Watch Pencil Notebook (to record results) Estimated Experiment Time About 1 to 2 hours Step-By-Step Procedure
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Experiment #8: Limiting Reactant Abstract In chemical reactions‚ the significance of knowing the limiting reactant is high. In order to increase the percent yield of product‚ increasing the limiting reactant‚ possibly‚ is the most effective. In this experiment we were able to calculate limiting reactants from the reaction of CaCl2. 2H2O + K2C2O4.H2O(aq). As a group‚ we obtained our salt mixture of calcium chloride and potassium oxalate‚ and weighed the mixture. We were able to make an aqueous
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Chem 21 Fall 2009 Experiment 9 — Recrystallization _____________________________________________________________________________ Pre-lab preparation. (1) Read the supplemental material from Zubrick‚ The Organic Chem Lab Survival Manual. (2) Draw the structure of acetanilide and report relevant physical data. Be sure to cite the source of the data. You should be able to figure out what’s relevant by reading the procedure. (3) Find and report the boiling points of the solvents you will be using
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minutes of aerobic exercise. Each suggestive treatment is complete with a reasonable physiological rationale. I have come up with an experiment to test the 3 variables to figure out what treatments if any will work the best. My hypothesis is that all 3 of the suggestive treatments when done before flying on an airplane‚ will reduce the effects of jet lag. Experiment: A commercial airplane traveling from New York City to Los Angles non –stop will be selected at random. All passengers will be randomly
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discussion I would like to contrast controlled laboratory experiments and naturalistic observations research methods. In controlled laboratory experiments‚ the researchers conduct their studies in a controlled setting. Conversely‚ studies involving naturalistic observation‚ examine participants in their natural environment. Below I present a contrast of the most essential features of each of these methods of research. Controlled laboratory experiments: • Objective: Seek to compare two or more conditions
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Colligative properties in your Coke Have you ever put salt on snow to get rid of it‚ or wondered how your car engine stays warm in cold weather? If you have‚ you’ve probably noticed that the salt quickly melts the snow‚ and you’ve wondered how the engine can stay warm‚ when the metal on the outside of the car is cold. These are just some of the many examples of how colligative properties work in our everyday lives. A colligative property is a property of a solvent that depends on the amount
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Osmosis Experiment Dennis M. Feliciano Grand Canyon University BIO100L Biology Concepts Lab June 25‚ 2011 Osmosis Experiment Materials Grapes (unblemished) Raisins (larger is better) Water Salt Four small containers (i.e.‚ drinking cups or clear glasses) A metric ruler Methods and Procedure Place 1 cup (236 ml) of water in each of the 4 containers. In 2 of the containers‚ add 1 tablespoon (14.8 ml) of table salt and mix well. Measure the length and width of a raisin and place
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FIRE RESISTANT BALLOON: Materials - 1 matchbox - 1 candle - 1 yellow colored balloon - 1 blue colored balloon - Half a cup of water Procedure: 1. For this experiment‚ the independent variable is whether the balloon is filled with water or not. The dependent variable is what happens to the balloon when it is placed above the lit candle. This is determined by observing the balloon. The constants (control variables) are how much the balloon is inflated and the amount
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Experiments in physics lab report Department of Electrical Engineering Isabela State University Ilagan Campus‚ Calamagui 2nd‚ City of Ilagan‚ Isabela baccaljoemel@yahoo.com Submitted to: Engr. Rafael S. Ramos Physics12 Professor Submitted by: Joemel L. Baccal BSEE IIA Experiments in Physics Lab Report Joemel L. Baccal Department of Electrical Engineering Isabela State University - Ilagan Campus‚ Calamagui 2nd‚ City of Ilagan‚ Isabela baccaljoemel@yahoo.com Abstract In
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liquid solution increases solubility. But for solubility of gas in liquids‚ an increase in temperature decreased solubility because gas evaporates as temperature increases. 2. Effect of Pressure Pressure unlike temperature has little effect on solutions unless the solute is a gas. An increase in pressure causes greater interaction between particles of the gas and the liquid‚ thus‚ increasing solubility. 3. Nature of the Solute and Solvent Nature of both solute and the solvent affect
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