Created By: Andrew Weeldreyer Mrs. Wolf Period:3 AP Chem Lab Report: Determination of the Molar Volume of a Gas Objective: To react Mg and HCL and form hydrogen gas‚ then after collecting lab data‚ determine the hydrogen gas’s molar volume at STP through calculation. Materials: -LabQuest data collector - 3.0 M of HCl solution - Ribbon of Mg metal - Gas pressure sensor
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The human cardiovascular system consists of the heart‚ the blood‚ and a system of transporting vessels. A human heart has four chambers: a right and left atrium and a right and left ventricle. The fist-sized heart sits in its own sac (the pericardium) in the middle of the chest under the sternum. In most people‚ the apex of the heart points to the left. There are two circuits of simultaneous blood flow in humans: a pulmonary circuit and a systemic circuit. In the pulmonary circuit‚ the right
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Abstract This lab is performed in order to determine the total energy in a reaction between zinc and hydrochloric acid. The reaction is done twice‚ once to measure the heat of the reaction and again to determine the work done in the system. This is because Enthalpy equals heat plus work (∆H= ∆E+W). Heat and work can be broken down further into separate components so the equation used in lab is ∆H=mc∆T + PV. Many calculations are used in the lab to find out what cannot be measured directly (ex:
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biochemical reactions1. Enzymes are responsible for almost every reaction that occurs in a cell and is named according to the substrate they specifically affect. An enzyme works best under optimal conditions pertaining to temperature‚ pH level and salt concentration1. In unfavorable conditions enzymes will become denatured and ineffective. In human beings enzymes are most effective in 37 C temperatures‚ at a pH level of 7.2 (in the stomach a pH of 2 and in the small intestine a pH of 8.5)3 and with
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There is specificity between the enzyme and substrate that react with. When a specific substrate binds to the active site of an enzyme‚ the active site undergoes slight conformational change to keep the substrate long enough to be converted to a product. So‚ the activity of enzymes can be determined by measuring the number
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of the lab session was to familiarize with the principles‚ operation and application of a light spectrophotometer. This report discusses an experiment to study the relationship of absorbance and concentration‚ the interaction of electromagnetic radiant energy(ERE) and matter which is an important aspect of the Beer-Lambert ’s Law. This law states that the absorption of a compound is directly proportional to the concentration of that particular compound. This is because (a & b) are constants. In the
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Experiment date: March 2‚ 2017 Table of Contents 1. Abstract 3 2. Introduction 3 3. Experimental details 4 3-1. Materials 4 3-2. Apparatus 7 3-3. Procedure 7 3-4. Special Precautions 8 3-5. Lab techniques 9 4. Results 9 5. Discussion 14 6. Conclusion 16 7. References 17 1. Abstract This lab report discusses an experiment to study thermodynamics and find ideal ionic compound to be used in hand warmer. Calorimetry experiment was conducted by dissolving three ionic compounds‚ CaCl2‚ Na2CO3‚
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6 November 2012 SUBJECT: Lab Report Analysis This memo proposes the observations and claims I collected from reviewing three different lab reports. Three fields of study are composed within this memo that includes Electrical Engineering‚ Environmental Engineering‚ and Petroleum Engineering. “Electrical Filters‚” (Electrical)‚ written by Joe Schmoe‚ is a lab report made by a student at a university. The College Board produced an environmental lab report named‚ “Monitoring Air Quality‚”
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Research & Design in Psychology / G Faculty of Health‚ University of Canberra LAB REPORT COVER SHEET Instructions: 1. Complete these details and the declarations electronically. 2. Insert this sheet at the start of your lab report. 3. Submit the entire assignment‚ including this coversheet‚ as one file via the lab report drop-box on Moodle. 4. For more information‚ see Lab report guidelines. |STUDENT NAME:
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level. If the mixture is too acidic‚ then add sodium bicarbonate‚ as necessary‚ to reduce acidity. In the next step‚ add enough sodium chloride so that a small amount will remain after stirring. This will decrease the solubility of organic compounds and increase the amount of product that can be collected. Decant the liquid part of the mixture into a separatory funnel. Wait 5 minutes for the layers to separate and then drain the bottom layer into the Erlenmeyer flask and the top layer into a vial
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