and ensure it to zero Let By Testing • I ensure the ECV is off • I made sure all appliance is in the off position • Then i get my stop watch to time • I then remove the test nipple screw and put it safe • I then let out the residual gas • Attach the manometer hose to the meter test nipple • manometer is then put on a level surface vertically • cooker lid is in the open position • Open ECV and allow the meniscus to rise to 10 mbar • I then close the ECV • Then time for
Premium Pressure Atmospheric pressure
Purpose: To determine the percent magnesium by mass in magnesium oxide and to observe if the percentage composition is constant by comparing class results. Hypothesis/Prediction: The percent composition by mass of magnesium in magnesium oxide will not change significantly with each group that conducted the experiment. The composition of each substance should stay the same and any differences must be due to some error. Materials:Magnesium stripCrucibleCrucible coverClay triangleIron ringRetort standTongsBalanceBunsen
Premium Magnesium Oxide Magnesium oxide
Gas Exchange in Mammals The mammalian respiratory system consists of the nasal cavity‚ pharynx‚ glottis‚ larynx‚ trachea‚ bronchi‚ bronchioles and air sacs (alveoli). The respiratory passages are lined by the presence of cilia and mucus-secreting cells‚ which keep them moist and trap dust‚ dirt and bacteria. The lungs are encased a rib cage. The rib cage is composed of the breastbone or sternum and ribs. At the bottom of the rib cage is a muscular diaphragm. Breathing in mammals. During inhalation
Free Respiratory system Heart Tobacco smoking
RADICAL HALOGENATION AND GAS CHROMATOGRAPHY Abstract In radical halogenations lab 1-chlorobutane and 5% sodium hypochlorite solution was mixed in a vial and put through tests to give a product that can then be analyzed using gas chromatography. This experiment was performed to show how a radical hydrogenation reaction works with alkanes. Four isomers were attained and then relative reactivity rate was calculated. 1‚1-dichlorobutane had 2.5% per Hydrogen; 1‚2-dichlorobutane had 10%; 1‚3-dichlorobutane
Premium Chlorine Chemical reaction
Chemical Gas Tests Procedure Part 1: Hydrogen and Manganese Dioxide 1. Inserted 4mL of hydrogen into a test tube 2. Scooped a little amount of manganese dioxide on the end of a wooden splint 3. Allowed the tip of the splint to flame using the Bunsen Burner 4. Allowed the reaction to proceed for a total of 15 seconds. 5. Placed the glowing splint into the test tube 6. Recorded the results Part 2: Magnesium strip and Hydrochloric acid 1. Poured 3mL of hydrochloric acid into a test
Premium Chlorine Carbon dioxide Oxygen
law In law‚ a sentence forms the final explicit act of a judge-ruled process‚ and also the symbolic principal act connected to his function. The sentence can generally involve a decree of imprisonment‚ a fine and/or other punishments against a defendant convicted of a crime. Those imprisoned for multiple crimes‚ will serve a consecutive sentence (in which the period of imprisonment equals the sum of all the sentences)‚ a concurrent sentence (in which the period of imprisonment equals the length
Free Crime Criminal law Sentence
exists in a gas phase at room temperature and 1 atm‚ but can also be obtained in solid phase (dry ice) for a general laboratory setting. In order to obtain liquid phase CO2 at room temperature and 1 atm‚ CO2 has to be pressurized and heated past the triple point‚ shown in Figure 1. 1 At temperatures above -56.6°C and pressures above 5.1 atm‚ liquid CO2 can be formed condensed and be used to extract limonene.1 The high pressure could be achieved by increasing the moles of CO2 gas
Premium Orange Citrus Essential oil
TASK 1 Explain the reference to legal principle and relevant case law‚ the legal aspect of placing the ‘Klick’ clock in the shop window with a price tag attached. Ann antiques has a rare ‘Klick’ clock on its shop with price tags of €1‚000 attached. In spite of its wording the sign in the window does not constitute a legal offer‚ it is merely an invitation to treat. Invitation to treat is an indication that the person who invite is willing to enter into a negotiation but it is not yet prepared
Premium Contract
1. Tips for Doing Business in Chile 1.1 General Advise While Chile is a top South American country‚ there is some general advice to follow when doing business with them: First‚ it is important to communicate with Chilean authorities in Spanish‚ at least in the first contacts made. Chilean companies can communicate in English‚ and you may find that they answer you in English‚ even if you contacted them in Spanish. However‚ some companies‚ or even authorities‚ are not able to correspond in English
Free Tax Corporate tax Economy
Lab: investigating hooked law with springs Purpose: to find spring constants of different springs using the slope of a graph of change in heights vs. the weight force. Also‚ to be able to understand how spring constants change when you add springs in a series or paralle Pre lab predictions: We predicted that the graph of gravitational force (mg) as a function of stretch (delta x) would look like Data: Spring #1: y = 8.2941x + 0.0685 This table represents the different distances that
Premium Mass Force Weight