light Hypothesis The cyclohexene will reactive the fastest because being an "ene" it has a electron rich area making it more reactive than cyclohexane but neither one of the will react without light Materials * 4x 250ml conical flasks * 2 rubber stoppers * Aluminium foil * Cyclohexane * Cyclohexene * Bromide water * Measuring cylinder Risk assessment risk | level | Precautions taken | Organic compound in eyeor on skin | medium | Glasses‚ lab
Premium Erlenmeyer flask Oxygen Color
In the second separation of this experiment‚ the Erlenmeyer flask with the first filtrate was put into a beaker so the filtrate was in the beaker. The beaker was then heated on a hotplate until near boiling. After the whey protein had precipitated‚ a vacuum filter was used to filter out the whey. These proteins were then air-dried. A qualitative test was done to indicate that the sample extracted was the protein whey. Again‚ a small test tube was used and 2 mL of protein test solution was put in
Premium Water Chemistry Bacteria
balance‚ and the exact mass was recorded. The hair was then transferred to a 50cm3 conical flask‚ to which 10ml of concentrated nitric acid (69-72%) was added. The solution was then stirred and heated on a hot plate‚ for about 1 hour‚ until the hair has dissolved‚ and a dark brown solution was obtained. The solution was then left to cool‚ and then was filtered using a fluted filter paper‚ into a 50ml volumetric flask. The filtrate was then made up to the 50 ml mark‚ using deionised water. An acidic medium
Premium Erlenmeyer flask Laboratory glassware Solvent
is used as a sample to study the growth kinetic of microorganism in shake flask. A different volume of E.coli was transferred into 250ml Erlenmeyer/shake flask containing media for the nutrient of microorganism. The different volume of microorganism transferred will give the different effect of reading on the constant volume of media used. There are three ways to test the growth kinetic rate of microorganism on shake flask‚ which are by optical density (OD)‚ glucose analysis and cell dry weight (CDW)
Premium Bacterial growth Bacteria Agar plate
The Octopus Flask is noted as one of the most popular recorded painting that dates back to 1500-1450 BCE. The art piece is a painting on a ceramic vessel‚ what people referred to as “bottle”‚ it came from the east Cretan site of Palaikastro and is now displayed at the Archeological Museum at Iraklion‚ Crete. The Octopus Flask‚ or the “bottle”‚ is decorated with paintings of marine life in celebration of the Cretan Maritime Power. It consists of an octopus and other marine life “floating” in its
Premium Ocean Shark The Old Man and the Sea
1 Period 8 Mr. Baker AP Eng. Lit. Sep 30‚ 2014 The Flask of Amaretto As the heat rose from our bodies and the sweat glistened‚ our swords clashed creating luminous sparks. The vigorous intimacy had left us quite weary and I led him into the parlor room. I placed myself upon the burgundy velvet couch and took a fresh Italian cigar from my cabinet while he sat on the chair across the dimly lighted room. He stared at me with a heavily lidded lustful gaze as he took a sip of his glass of Amontillado
Premium English-language films Debut albums Color
OBJECTIVES The objective of the experiment was To calibrate a 10 mL volumetric pipette To calibrate a 25 mL volumetric pipette To calibrate a 100 mL volumetric flask To calibrate a 50 mL measuring cylinder INTRODUCTION The purpose of this experiment is to study the relationship of several types of volumetric glassware and the accuracy of measuring the volumes of liquids very precisely in quantitative laboratory work. The accuracy of the measurement the volumes is the degree of closeness
Premium Measurement Laboratory glassware Metrology
Determining Stoichiometric Ratios: NaOH and HCl & NaOH and H2SO4 Reactions Contents Introduction 3 Materials & Procedure 4 Raw Data 8 Processed Data 15 Graphs 16 Conclusion & Evaluation 17 Introduction Background Information Stoichiometry is a critical component in chemistry‚ and helps in understanding the quantitative relationship between the number of moles of reactants and products in a reaction. Objective In this experiment‚ the reactions
Premium Hydrochloric acid Chemical reaction Thermodynamics
the spectrophotometer before preparing the solutions since it requires about 15 minutes to warm up. 1.Make sure the volumetric flasks are clean. If they appear dirty‚ wash them with soap and water‚ and do a final rinse with DI water. Dry the outside completely. The inside may remain wet since DI water will be added to the flask. Label three of the volumetric flasks #2-4. 2. Obtain about 50 mL of the stock solution in a 100 mL beaker. Transfer about half of the solution to a large test tube
Premium Light Laboratory glassware Wavelength
high surface pressure to move over the land. This causes a small temperature gradient between the ocean surface and the nearby land at night and the wind will blow from the land to the ocean creating the land breeze. Thermos Flask A vacuum flask (also known as a Dewar flask‚ Dewar bottle or Thermos) is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask’s surroundings. Invented by Sir
Premium Vacuum Climate Ocean