Conductivity Solutions Abstract: We produced conductivity tests in water and other various solutions with a computer faced Conductivity Probe using the unit of microsiemens per centimeter (uS/cm) to find out which solutions had a high conductivity and which solutions had a low conductivity. Many different solutions vary in conductivity due to the ratio of ions. Different levels of ions have an impact on conductivity because of the different charges and different types of bonds. Conductivity is
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Heat Food Lab * Purpose: * Understand how to calculate calories per gram from burning food in the laboratory. * Understanding how to use the food nutrition label on the back of the package to calculate the calories per gram. * The calculated calories per gram in the laboratory are compared to the calories per gram that were calculated from the nutrition label. Then the % error and % yield are calculated and displayed in table and in a graph. * Students will be able
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Weather Unit-Mid Unit Test Study Sheet 1. What are the four elements of weather? The four elements of Weather are Wind‚ Temperature‚ Moisture and Air Pressure. 2. What are the three states of water? The three states of water are solid‚ liquid and Gas. 3. Explain the differences between solid‚ liquid‚ gas- how much energy is being used? What are the particles doing? The difference between solid‚ liquid and gas is Solid has low energy and is cold‚ liquid is medium energy and is warm and gas has
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Q1 (a) Define density and relative density. What are the different units of measurement of density? (b) Explain how the relative density of a liquid is found using specific gravity bottle. (c) A metal casting is expected to have a specific gravity of 7.5. Due to entrap air bubbles the actual specific gravity was found to be 6.5. What percentage of the casting filled with air? (Neglect the mass of air in calculation). Q2 (a) Write down the relationship for the dynamic viscosity of fluid in terms of
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A mineral is any naturally occurring‚ inorganic substance‚ often additionally characterized by an exact crystal structure. Its chemical structure can be exact‚ or can vary within limits. Minerals possess a number of properties that are used as an aid in their identification just like color‚ luster‚ streak‚ cleavage‚ hardness‚ specific gravity‚ and even by their chemical properties‚ composition‚ Hardness‚ Crystal Form‚ Electrical Properties and Melting Points. Here I got a mineral as shown in the
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HEAT ENGINE WORKING CYCLES An engine is a device which transforms one form of energy into another form. However‚ while transforming energy from one form to another form‚ the efficiency of conversion plays an important role. Normally‚ most of the engines convert thermal energy to mechanical work and therefore they are called ‘heat engines’. Heat engine is a device which transforms the chemical energy of a fuel into thermal energy and utilizes this thermal energy to perform useful work. Depending
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Cal: Metal: | Aluminum | Zinc | Iron | Copper | Mass of metal: | 27.776 g | 41.664 g | 34.720 g | 41.664 g | Volume of water in the calorimeter: | 26.0 mL | 26.0 mL | 26.0 mL | 26.0 mL | Initial temperature of water in calorimeter: | 25.3 °C | 25.3 °C | 25.3 °C | 25.3 °C | Temperature of hot water and metal in hot water bath: | 100.5 °C | 100.5 °C | 100.5 °C | 100.5 °C | Final temperature reached in the calorimeter: | 31.6 °C | 34.8 °C | 33.1 °C | 34.5 °C | Part I: Part II: Metal:
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wavelength of light. Because the velocity of light in air is always greater than that through a liquid‚ the refractive index is a number greater than 1; for example‚ hexane n20D 1.3751. The superscript 20 indicates that the measurement was made at 20 oC‚ and the subscript D refers to the yellow D-line of a sodium vapor lamp‚ light with a wavelength of 589 nm. The measurement is made with a refractometer using a few drops of liquid. Compensation is made within the instrument for the fact that white
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Kinetic Theory Objectives • Describe how the kinetic-molecular theory is used to explain how gases behave at different temperatures. (Exploration 1) • Analyze data that shows how gas particle mass affects that gas’s behavior. (Exploration 2) • Describe the Maxwell-Boltzmann Distribution. (Explorations 1 and 2) Description of Activity The kinetic-molecular theory states that a collection of gas molecules’ average kinetic energy has a specific value at any given temperature
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Introduction I am investigating factors that affect heat loss from a body. All athletes become hot during exercise and need to be aware of how fast their bodies will cool down after the exercise. In extreme conditions the continued drop of body temperature may cause hypothermia. Hypothermia is caused by the core body temperature dropping below 35degrees. This is why it is important to how quickly the body loses heat and what affects it. Heat is lost from the body in 3 different ways conduction
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