Determination of KHP – Acid - Base Titration For determining purity of unknown KHP‚ acid – base titration was used. Molarity of titrant in this case NaOH was standardized as 0.04958(±0.00011) M. Purity of unknown KHP was calculated as 35.88(±0.16) %. • Introduction Acid – base titration is typical method of determining unknown figures. Acid – base titration means that by using neutralization between acid and base. Abrupt changing of pH says whether procedure is done or not. pH indicators
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2/26/2013 SOIL MECHANICS 1 KAEA 2132 - Phase diagram & phase relationship - Soil-Aggregate Basic Relationship Dr. Meldi Suhatril Department of Civil Engineering‚ Faculty of Engineering‚ University of Malaya. Review : o Soil is inherently multiphase material (Generally consists of three phases) i. Solid phase ii. Liquid phase iii. Gaseous phase 3 – Phase system: AIR WATER Vv Va Vw Vs Wa= 0 Ww Ws = o It can also be TWO PHASE material i. With solid + Gaseous (DRY STATE)
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Proper Use Of Micropipettes A micropipette is one of the instruments that is usually used in science laboratories .Micropipette are used to accurately measure and dispense small volumes of liquid . The capacity of a micropipette can range from less 1µl to 1000µl (1ml) .There are glass pipettes ‚ air displacement pipettes ‚ and positive displacement pipettes . Mostly ‚ the air displacement pipettes and positive displacement pipettes are used . Firstly ‚ the piston is moved to the appropriate
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Temp. 25 C Pressure 76.0 Indirect Measurement of Volume INTRODUCTION: The purpose of this lab was to demonstrate an indirect measurement of volume. This was done by determining the volume of a single drop of using a graduated cylinder to measure a known amount of consistent drops‚ which allows for the individual volume to be determined mathematically. MATERIALS AND METHODS: Pipette‚ 10ml graduated cylinder‚ water‚ rubbing alcohol and hand soap. A pipette was used to place
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Factors that affect climate Latitude: Ocean Currents: Wind and air masses: Elevation: Relief: Near water: Global Factors that Affect Climate As the suns UV rays hit the earth they hit is directly at the equator causing more heat. Because these rays are direct and they hit direct at one spot. For part a‚ the earth start to slope‚ in which the sun’s rays have to hit a larger areas‚ and have to travel further distances. As the latitude increases‚ the average annual temperatures decreases. In North
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Do you ever wonder why a boat floats and a rock doesn’t? Well I do. A Boat floats because of buoyancy and it remains lighter than the amount of water it displaces. Buoyancy is an interesting topic. Buoyancy can happen in any fluid and air. The buoyant force applies not just to water but to any fluid...A fluid is a substance that is able to take the shape of a container in which it is placed.” The source of this information is http://blackbirdlibrary.pbworks.com/w/file/fetch/70171466/dFlaoting
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Module 2 Honors Extension: The Physics in Swimming Physics is defined as the branch of science concerning the study of matter and energy and the interactions between the two. Physics tries to explain the nature of the world around us‚ how things happen and why. Swimming displays some physical properties‚ such as buoyancy‚ drag resistance and propulsion. We swimmers are at a constant battle to stay afloat‚ while fighting through the water and propelling ourselves forward‚ and we do so using technique
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Introduction In my experiment I will be testing the differences of wood being soaked in rain and saltwater for a period of days. Then set out to dry to see if it had any change in width and weight. Question Does water affect the weight and appearance of wood over periods of time? Hypothesis I believe Red Oak will have the most change in weight in saltwater and the most change in appearance will be Pine in saltwater. Materials 1/3 8ft of Red oak 1/3 8ft of Yellow Pine 1/3 8ft of Treated
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Matt Munet P3 Data: Temp (0 Degrees Time (min) Reading at time x Difference Reading at time x Difference Corrected difference Reading at time x Difference Corrected difference 0 .85 x .67 x X .86 X X 5 .84 .01 .38 .29 .28 .84 .2 .01 10 .83 .02 .2 .477 .45 .84 .2 .01 15 .84 .01 .05 .622 .61 .84 .2 .01 20 .84 .01 .005 .665 .655 .84 .02 .01 Respiration in Beads‚ Germinating Peas‚ and Dry Peas Using Respirometers Beads Alone
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Kharishma Patel BIO 3422-E Urine Analysis Lab Objective The objective of this experiment shall be to examine the effects of different types of fluids on the renal system including rate of urine production‚ pH‚ and specific gravity. Hypothesis The group drinking water will have the highest rate of urine production. The group that drinks water only when thirsty will have the lowest rate of urine production. The specific gravity of urine for all treatment groups will be around 1.000. The pH for
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