Allison Oneal Chemistry I June 20‚ 2013 Dr. Michael May Properties of Gases I. Abstract The purpose of this experiment is to examine the properties of several gasses‚ which were the products of a reaction‚ and examine the way the gasses react under certain conditions. These conditions‚ such as introducing a flame to the gas as well as oxygen and CO2‚ caused other reactions to occur. Experiment Before I began the experiment I gathered all my supplies from the given list in the lab manual.
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purified‚ and even bottled water. All of these solutions are very similar‚ but one difference that could be proposed between them is the rate of nucleation when the different solutions are super cooled. According to one study‚ “Supercooling occurs when a liquid does not freeze although its temperature is below its freezing point” (Gholaminejad & Hosseini‚ 2013). Many experiments have been conducted on this area of study‚ but their experiments were limited because distilled water was the only type of aqueous
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EXPERIMENT 1 COLLIGATIVE PROPERTIES OF SOLUTIONS Date: December 03‚ 2013 Locker 21 Members: Vanessa Olga Dagondon Christine Anne Jomocan Janica Mae Laviste Nablo Ken Menez A. TYPES OF DISPERSED SYSTEMS Results and Discussion The first part of the experiment aims to differentiate the different dispersion systems. In this experment‚ three systems are introduced: true solution‚ colloidal dispersion and coarse mixture. The said three systems are classified through a property of colloids known as the
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Bubble Inside a Bubble Materials • • • • • • • • Granulated sugar (we had our best results using Imperial Sugar and Dixie Crystals) Dish soap Water Tablespoon Scissors Pipette Cup Adult supervision Bubbles form because of a combination of water’s hydrogen bonds and the oily film you can see shimmer in the light. The oily film you see is actually two separate layers of soap attached to‚ and surrounding‚ hydrogen-bonded water. Solar Oven S’mores Materials • Pizza box • Two clear sheet protectors
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with distilled H2O 3. Place penny with the Lincoln side up on top of a piece of paper towel 4. Fill pipet with distilled H2O and hold it about 3 cm above the penny 5. Slowly drip the distilled H20 on the penny face and count the drips until the liquid leaks off the edge of the penny on to the paper towel 6. Record the amount of drips 7. Clean penny 8. Repeat steps 3 through 7‚ 3 more times substituting distilled H2O with tap H2O‚ salt H2O‚ and soapy H2O Hypothesis: I think that the 10 drops
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naturally occurring element that is found in air‚ water and soil. It exists in several forms: elemental or metallic mercury‚ inorganic mercury compounds‚ and organic mercury compounds. It is a shiny metal‚ silver-white color‚ volatile and odorless liquid metal. The exposure to mercury can affect and harm human health‚ environmental and wildlife. How is mercury released into the environment? Mercury can be released into the environment through leaks and spills of the medical devices like thermometers
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of the glycerin (l). Dependent Variable: The dependent variable of this experiment is the viscosity s -1 of the glycerin (l). Controlled Variable(s): The controlled variable(s) are: the liquid used‚ the marble used‚ the distance the marble is dropped‚ the volume (mL) of glycerin in the graduated cylinder. The liquid used is glycerin. The same marble is used throughout the experiment‚ and it has a mass of 4.61g±0.01g. The distance the marble is dropped is 24.70 ±0.05cm. The amount of glycerin in the
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water into beaker and record 5. Add 5 more drops and record 6. Add 5 more drops and record 7. Repeat 1-5 two more times Part 2: Rate Order of KI 1. Get pipets and label them accordingly 2. Fill pipets with 2ml of each liquid 3. Put pipets on a stand 4. Get a well and clean it 5. Use table 1 as a guide and fill wells first well accordingly 6. Do the next 3 wells and repeat step 5 7. Fill wells 7‚8‚ and 9 8. Fill wells 10‚ 11‚ and 12 9. Add
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lost(Data 2 – Data 4) | 1.041g | 1.030 g | 6. Percent Water in unknown(Data 5 / Data 3) X 100 | 50.024 % | 51.449 % | 7. Percent Error | 2.297 % | .486 % | Observations – Trial 1: The hydrate is bubbling and some of it is melting and becoming a liquid. Evaporation is occurring and the melted part is hardening to form a consistent solid. The sample is sticking together instead of being in separate granules. The sample has dried up and is becoming crusty. Trial 2: The observations of trial 1 are
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can be prevented from occurring. Since the hydrostatic pressure of the mud depends directly on the density of the fluid and if the hydrostatic pressure is much greater than the formation pressure‚ it can lead to the losing of the continuous phase (liquid phase) of the drilling fluid to the porous formations (loss circulation). Conversely if the hydrostatic pressure of the drilling fluid is less than the pressures of the formations encountered‚ this can lead to the gushing of the formation fluids into
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