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Oxygen Essay Examples

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PRODUCTION OPERATIONS & MANUFACTURING PROCESSES OF LABSA

Sulphonation – The Process Most electrophilic substitution reactions are irreversible but sulfonation is an exception. Treatment of benzene with “oleum” (a solution of SO3 in concentrated sulfuric acid) will give the sulfonic acid, the electrophilic species being sulfur trioxide which is Lewis acidic. Fig – 1 Sulphonation : Benzene equation The sulfonic acid can be…

Date and Observations

1. Write the balanced equation for the reaction conducted in this lab, including appropriate phase symbols.
Mg(s) + 2HCl(aq) –> H2(g) + MgCl2(aq) 2. Determine the partial pressure of the hydrogen gas collected in the gas collection tube. 
The partial pressure of the hydrogen gas is 1.07 atm 3. Calculate the moles of hydrogen gas collected.
pv=mrt…

Human Impacts on the Ecosystem

The three cycling matters of the ecosystem and the key elements are Carbon, Phosphorus, and Nitrogen. Humans have impacted each and every-one of these cycles in different ways throughout time and keep increasing as time goes on. All living things are made of carbon. Carbon is also in the air, water and rocks. The humans…

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Digestive and Respiratory System Worksheet

Before answering the questions below, log in to ADAM and view the clinical animations for Peristalsis and Gas Exchange. Remember, you may use our text, our discussions, and the internet to write your answers, but be sure to write your answers in your own words and to use correct citations where appropriate! Cutting and Pasting…

Data observation

Complete a data table that includes a prediction of reaction type (single replacement, double replacement, synthesis, decomposition, or combustion), observations, and identification of reaction type for each reaction in the lab. (10 points) Reactants Prediction of Reaction Type Observations Reaction Type Iron (III) and copper (II) sulfate solution single replacement Solids stay concentrated at the…

GA AEMT Drug Cards

ACTION: Reverses Hypoxia, Increases arterial oxygen, Increases hemoglobin saturation, Increases tissue oxygenation Indications: Hypoxia or anticipated hypoxia, or in any medical or trauma patient to improve respiratory efficiency. Contraindications: There are no contraindications to oxygen therapy. Dose: Route: Oral DOSAGE: Adult: 1-6 LPM via NC; 10-15 LPM via NRB; 15 LPM via BVM Pediatric: 1-6…

An Inconvenient Truth vs. the Great Global Warming Swindle

Is our planet headed for irreversible disaster? Every reputable scientist in the world believes it is. Left unchecked, global warming’s negative effects on our natural environment could have catastrophic consequences not only for our planet and wildlife but for mankind as well. What is Global Warming you might question? Well, Global warming is caused when…

War
Lab: Photosynthesis

Introduction: Elodea is a species of aquatic plant often called waterweed. Like other plants, Elodea absorbs carbon dioxide and releases oxygen during photosynthesis. In this lab, an Elodea specimen is submerged in water under a lamp with a filter that can change the color of the light. We will measure Elodea’s rate of photosynthesis by…

Lab Report on Effect of Enzymes

ntroduction The enzyme catalase is present in cells in order to speed the breakdown of hydrogen peroxide (H2O2), which is a toxic chemical to the human body. When hydrogen peroxide is broken down, the end products are Water (H2O) and Oxygen (O2). In this report, the reaction of catalase to hydrogen peroxide is being tested….

The Effect of pH on Enzymatic Reaction Rate

Abstract Enzymes are affected by changes in pH. The most favorable pH value— the point where the enzyme is most active—is known as the optimum pH. This experiment was conducted to determine the effect of pH reaction rate on an enzyme, catalase, from yeast. The experimental results indicate that the catalase worked best at a…

Determination of Dissolved Oxygen In a Water

INTRODUCTION In an alkaline solution, dissolved oxygen will oxidize manganese(II) to the trivalent state. 8OH-(aq) + 4Mn2+(aq) + 2H2O(l) --> 4Mn(OH)3(s) The analysis is completed by titrating the iodine produced from potassium iodide by manganese(III) hydroxide. 2Mn(OH)3(s) + 2I-(aq) + 6 H+(aq) --> 2Mn2+(aq) + I2(aq) + 6H2O(l) Sodium thiosulphate is used as the titrant….

Determination of the amount of dissolved oxygen

Topic : Determination of the amount of dissolved oxygen in a water sample by iodometry-the winkler’s method. Objective: To determine the amount of dissolved oxygen in a water sample by iodometry- the winkler’s method. Apparatus: volumetric pipette, 3 conical flask, burette, burette clamp, Pasteur pipette, reagent bottle, conical flask stopper, retord stand, white tile Materials:…

Properties of Gases

Purpose: The purpose of this experiment is to examine different properties of gases in order to be able to identify them in a laboratory setting. I will be using Hydrochloric acid, mossy zinc, Bromothymol blue, limewater, Manganese, and Alka Seltzer, to test different properties of gases formed by chemical reactions. In order to extract the…

Cari’s Story

A)How could an infection in Cari’s nasal passages and pharynx spread into her sinuses? The infection in Cari’s nasal passages and pharynx was able to spread into her sinuses due to the sinuses being a drainage area for the nasal passages. B)What is the cough reflex? Describe the process that Cari’s respiratory system is using…

The Aldol Reaction Lab Report

Purpose: The purpose of this experiment is to be able to conduct an aldol condensation reaction using an unknown aldehyde and an unknown ketone. H NMR is used to identify the unknown aldehyde and ketone. Melting point is used to identify the aldol condensation reaction. Theory: Condensation reaction is also known as a dehydration reaction….

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