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Lab Reports Essay Examples

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Acid and Base Lab Report

My hypothesis for these solutions is ammonia is acid, vinegar is neutral, rain cleaner is base, soft drink is base, baking soda is base, detergent is base, and lemon juice is an acid. For the red cabbage it would be the same as using red and blue litmus. If the pH number of the solutions…

Chem Lab Report

Introduction Matter that people encounter in everyday life consists of mixtures of different substances. Mixtures are combinations of two or more substances in which each substance retains its own chemical identity and therefore the original properties are maintained. The substances making up a mixture are called its components. According to our General Chemistry book, there…

Formal Lab Report

Therefore, alkyl halides are compounds that have a halogen atom bonded o a saturated, SSP hybridism carbon atom. These could be classified according to the number of alkyl groups attached to the carbon that is bonded to the halogen atom. A methyl halide does not contain any alkyl group, a primary halide has one alkyl…

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Lab Report Biology

Though goldfish are one of the easier species f aquatic life to care for, their respiratory systems are just as complex as any other fish. Like other aquatic animals, goldfish have a one-way flow respiratory system. This means that their respiratory system pumps water through their gills and back into the water supply to absorb…

Bending of Beam Lab Report

Where P is the applied force, L is the length of beam, E is the modulus of elasticity f aluminum, and I is the moment of Inertia. For a beam of rectangular cross section, say of width w and thickness t, the same mid spam deflection of the centrally loaded beam when the flat side…

Lab report water

If the amylase only partly digests the starch, what would you expect to happen? If the amylase only partly digests the starch, I would expect to see a faint color change as well as a small presence of glucose inside the intestine. If the amylase fails to digest the starch, what results would you expect?…

Lab Report

Osmosis happens when water diffuses across the membrane from the region of lower solute concentration (higher free water concentration) to that of higher solute concentration (lower free water concentration) until the solute concentrations on both sides of the membrane is equal. (Reese, 2011). Active Transport is the type of transport of molecules where energy is…

Osmosis and diffusion lab report

Introduction: The purpose of experiment 1 was to demonstrate the principle of simple diffusion and understand how to make % solutions. Exercise 2 demonstrated the principle of osmosis: observing the movement of water by osmosis from an area of lower concentration of a solute to an area of higher concentration of a solute. Materials and…

AP Biology enzyme cataylst lab report

The purpose of activity C is o determine the rate at which H2O spontaneously decomposes when exposed to room temperatures and ambient light for 24 hours. The purpose of activity D is to determine the rate at which catalane decomposes H2O. After adding HOSTS for different time lashes, etc. , the resulting data will be…

Lab report-acid rain

A buffer is a special solution that stops massive changes in pH levels. Every buffer that is made has a certain buffer capacity, and buffer range. The buffer capacity is the amount of acid or base that can be added before the pH begins to change significantly. It can be also defined as the quantity…

Mechanics of machines Lab report crank and connecting rod

Crank and Connecting Rod Introduction- The motion of assemblies is determined by the configuration of links and joints. Using the configurations the operation of rotational and sliding joints are examined and observed. This kind of mechanism is very commonplace in machines. Machines are made up of a number of parts and relative motion between the…

Biology Lab Report

They use these devices to identify the specific types of bacteria b) forensic scientist? They view tiny specimen of evidence under the microscope which include skin cells, hair, soil, ink, etc… C) oncologist? To search for cancerous cells 5. Why would a dissecting microscope be useful to a: a) jeweler? To test the authenticity of…

Biology Lactase Lab Report Example

Both plots of data were hen used to find at which concentrations of NP absorption levels, and thus enzyme activity rates, were at their highest across each of the three pH solutions. Based on the results of both experiments, it was found that a pH of 5 is the optimal pH for the productivity of…

Lab Report on Heredity of eye colour

Diagram: Brown eye Black eye Method: Call up my relatives. Ask their eye color. Record their answers in the table below. Analyze the data and graph it. Analyze my graph and conclude which eye color is dominant. Scientific Inquiry and Processing Data (Criteria D & E) Data Collection: Family member Eye color Father Brown Mother…

Lab report ultrasound

Apply coupling gel to the scanning surface. 2. Position the transducer above the vertical plane target and perpendicular to the wires. Do not apply excessive pressure as this may temporarily compress the target and skew the measurement. 3. Adjust the instrument setting as for a “normal” liver technique. Record these settings for used on subsequence…

Informal Lab Report :Chemical Reactions

Types of Chemical Reactions Data: Reaction Observations Evidence It turned a reddish brown and the liquid went clear. The color change proved it was a chemical change. The reaction turned yellow and it separated and created a fog. The solid formed precipitation and had a color change during the reaction proving it to be a…

Biophysical Lab Report

After arriving at Masc.. Gregg Park and analyzing the temperatures of four microcircuits within woo habitats with infrared thermometers, the temperatures were compared between the microcircuits. Then, one habitat was chosen to analyze the temperatures between temperatures of isotherms using I-buttons that were placed inside Peeps. After the five Peeps were placed in each microcircuit…

Ap Chem Lab Report

After the experiment, the experimental mole ratio of alum to eater will be calculated and then compared with the accepted mole ratio. (This is 12 to 1). Theory If this lab if conducted properly, the unknown substance will be determined to be alum because of melting point, percent hydration and percent sulfate. The first test…

Soils lab report

Observations/Data Record the observations and/or data you collected here. Describe the color, feel, and appearance of each soil sample. Sample 1: Play ground sand: khaki colored, feels rough, has more sand than rocks. Sample 2: Potting soil: black/brown-sis colored, feels some what soft, has little pieces of bark (woody stem, branches, and roots of plants….

Osmosis Lab Report

Living organisms tend towards balance with their environment. Cells achieve this through diffusion. This is the random movement of solutes from an area of higher concentration to lower concentration. Osmosis is a special case of diffusion. Osmosis is the movement of water through a selectively permeable membrane. During osmosis, water molecules diffuse through the membrane…

Chemistry lab report, density

We then placed a sample of Copper in the graduated cylinder. 2. The water level rose ml. We subtracted the original ml of water from the ml of water with Copper in it. This gave us the volume of the Copper, being ml. 3. We then took the sample of Copper and placed it on…

Lab Report on Solubility

In our findings, we were able to determine the mass of the determined and the percent recovery of matter. The outcome of the experiment was that we made the correct calculations which gave us the confidence to know how to do an analysis of mixture. Introduction A mixture is a material that is not uniform…

Physiology Lab report

The purpose of this lab was to observe passive transport of molecules through diffusion and osmosis. We had to keep close observation on two dialysis bags and explain how we measured the change in weight as diffusion and osmosis occurred throughout the experiment. Cells produce an energy called Kinetic Energy. This causes molecules of the…

Behavior of Electrostatic Charges

As there were five similar experiments done, there is one common observed behavior – similar charges repel and opposite charges attract. The experiment went expected as there were no unusual observations recorded. In the first part, it was observed that when the plastic rod was rubbed it attracted the tissue bits. The explanation with this…

Lab Report

The Iced Tea Debate The Salty Soup The Fire Bug 2 Use the DATA chart provided for recording observation based on three demonstrations you will watch 3 Watch each part of the experimental demonstration and make predictions about what will happen in each scenario . Record your predictions and observations in the Data an Observations…

Inertia lab report

Load is accelerating because weight(Fig=MGM) of the load is bigger than tension on a string so load is not in equilibrium and by Newton’s Second Law (F=ma) resultant Orca creates an acceleration. Resultant force can be calculated by the equation S=0. Data+UT to find acceleration and F=ma. String rotates the spindle which rotates the disc…

Tensile lab report

Referring from the resultant graph, we can see that the obtained graph line is straight until the one point it decrease gradually and be rupture. This shows that both variables on the graph are linearly related with each other. From the data obtained, we identify types of fracture surface of mild steel under tensile loading….

Carbohydrates lab report

Carbohydrates are a type of acquirement found in many foods and beverages. Most carbohydrates are naturally occurring in plant-based foods, such as grains. Food manufacturers also add carbohydrates to processed foods in the form of starch or added sugar. As with all our approaches to food ingredients/constituents we will first examine the structure of carbohydrates…

Statistical Analysis of Experimental Density Data

The methods used in this experiment were very basic, the instructions show how to read a burette and a balance; and tells how many significant figures have to use for ACH device. In order to take mass there was necessary to use a beaker to place the glass beads (the object that was going to…

Deflection lab report

When loads are applied to a beam their originally straight axes become curved. Displacements from the initial axes are called bending or flexural deflections. The amount of flexural deflection in a beam is related to the beams area moment of inertia (l), the single applied concentrated load (P), length of the beam (L), the modulus…

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