said to be in "thermal equilibrium". Apparatus -1 glass thermometer * calorimeter * stop watch * and hot water Procedure- 1) we took hot water from the lab We put it into a calorimeter and put a glass thermometer into it. 2) We measured the intial temperature to be 81 degree celcius. 3) Then we recorded the temperature every 2 mins. 4) And continued doing so for 30 mins. Controlling the
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INTRODUCTION As for the visual documentation of a living or dead specimen‚ digital photography has largely replaced traditional illustrations of the living specimen as the standard method of recording the colour and anatomy of the specimen in the field today. Earlier traditional illustration (coloured and black and white) are still considered scientifically important because they can stress fine anatomical features that are often obscured by liquid. Even today‚ these earlier traditional illustrations
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A. Goal and Purpose: Session 1: In this lab‚ we will achieve a simple Friedel-Crafts alkylation of anthracene. The choice of anthracene as an aromatic substrate stems from two considerations. First‚ there is a question of regioselectivity. Second‚ anthracene and its derivatives are highly visible under UV light. Session 2: In this lab‚ we will complete a partial conversion of 9-acetylanthracene using m-chloroperoxybenzoic acid (mCPBA). We will also determine by NMR‚ the regiochemistry of the
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Osmosis Lab Research Question: In this lab‚ our goal was to look at the effects of different sucrose concentrations on osmosis in potatoes. Our research question was “How do the sugar levels affect the rate of osmosis in potatoes?”. Background Information: Solutions consist of solutes dissolved in a solvent. In all living organisms there are many different types of solutes including salts and sugars. The major solvent is water. There are different concentrations of solutes in various regions
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AP Biology Lab: Catalase (Enzymes) Abstract In this laboratory exercise‚ studies of enzyme catalase‚ which accelerates the breakdown of hydrogen peroxide into water and oxygen. The purpose was to isolate catalase from starch and measure the rate of activity under different conditions. The laboratory was also conducted in association with a second laboratory that measured the effects of an inhibitor on the enzymes. Changes in temperature and pH along with Substrate Concentration and Enzyme
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However‚ in other cases‚ a non-zero set point may be more appropriate; for example‚ in temperature-sensing‚ a reasonable neutral environment might by 0 Celsius or room temperature. As the sensitivity of the system will be greatest at the synchronous frequency‚ the synchronous frequency accordingly is measured. It should be noted that the electrical input signal should have a frequency equal to the synchronous
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b)have c)will have 6.I’ll talk to him when he…………………. a)will come b)will be coming c)comes 7.We haven’t ………………a hotel room yet. a)hired b)booked c)rented 8)The island has got some nice……………beaches. a)rocky b)secluded c)narrow 9.They haven’t seen us………..we moved to Paris. a)for b)when c)since 10.If you……………..blue with yellow‚you get green. a)will
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Impulse control disorders are conditions in which the afflicted cannot control his or her actions. Examples of Impulse control disorders include Pyromania and Kleptomania‚ the uncontrollable urge to set fire to something and the urge to steal something usually invaluable for the sheer rush of stealing‚ respectively. Both these disorders sound like excuses to illegal activities but studies show that only 5% of shoplifters can be diagnosed with Kleptomania and less that 2% of people accused of arson
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Question 7 of 9 10.0/ 10.0 Points Where is the major trough over the US in the image below? A.over the Great Plains of the US B.There is no trough in the image. C.over the west coast of the US D.over the southeast US. Answer Key: A Question 8 of 9 10.0/ 10.0 Points In the image of dewpoint temperatures below‚ what region will have enough moisture to sustain severe weather? A.Southeast US northward to Iowa. B.Central Texas C.All of Kansas and Colorado. D.New
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Name: Danielle Title: Unknown Lab Report Introduction: There are many reasons for identifying an unknown bacterium. The reasons range from medical purposes‚ such as determining if the unknown could cause ailments in living things or knowing what microorganisms are needed to make antibiotics. The experiment was done by applying methods in order to identify an unknown bacterium. An unknown bacterium was handed out by Dr. Honer. The appropriate tests were prepared and applied. The
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