with AgNO3 added. The initial length of the potato cylinders were 2cm as depicted in table two. Graph two depicts the correlation of percent change in length in different sucrose concentrations. The initial weights for the solutions lacking AgNO3 ranged from 1.0-1.7grams (Table 3). Graph three displays the correlation for the percent change in weight for a solution lacking AgNO3 in different sucrose solutions. The initial lengths of the cylinders were 2cm (Table 4).Graph four depicts the correlation
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Enzyme Lab 6 03/13/2013 Report by Mary Jo Anthony I. Introduction II. Materials and Methods III. Results IV. Conclusion and Discussion Introduction Background Information: This lab allowed us to study chemical reactions and how catalysts will affect the rate of these reactions. The reaction we studied is the breakdown of hydrogen peroxide to water and oxygen and it is vital to life. The molecule hydrogen peroxide is a molecule that is toxic
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temperature on enzyme activity Hypothesis: As the temperature deviates from 40°C the activity will lower Equipment: – Chemicals: – Milk – Junket tablets – Hot water – Ice – Test tubes – Stopwatch – Measuring cylinder Risk Assessment: |Hazard |Risk |Prevention | |Hot Water |Hot water splashing or spilling on |Safety glasses and aprons were worn
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Sonia St James Investigation: Factors that affect the outcome of enzyme activity Introduction In this project I will monitor the rate of activity of Catalase. Catalase is an Enzyme which in the right conditions catalyses the decomposition of Hydrogen Peroxide into water and oxygen; 2H2O2 + Catalase >>> 2H2O + O2 Catalase is found in all cells and protects them from Hydrogen Peroxide which is a dangerous waste product that needs to be eliminated. Without Catalase living things could not survive
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called split tensile strength of concrete. The size of cylinder is 300mm length with 150mm diameter or 200mm with 100mm diameter. The specimen were kept in water for curing for 3 days‚ 7 days and 21 days and on test day remove and allow the surface to dry. The test is performed out by placing a cylindrical specimen horizontally between the loading surfaces of a compression testing machine and the load is applied until failure of the cylinder along the vertical diameter occurs‚ record the maximum
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difference = The precision refers to the “repeatability” of a measurement. The two factors that determine the precision are the measuring instrument (LOR) and the “measurer‚” the person making the measurement. READING A GRADUATED CYLINDER The meniscus is the curve seen at the top of a liquid in response to its container. The meniscus can be either concave or convex. A concave meniscus (ex: water in glass) occurs when the molecules of the liquid are more strongly attracted to the
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Compressed Air SOP No: VA12 ..................... Version: 1........................... Date: ..................... Dept/Div/School: Visual and Performing Arts Supervisor/Manager: Other Contacts: HAZARDS: High pressure air in storage cylinder. Eye and hearing damage. Air bubbles in bloodstream. PROTECTIVE EQUIPMENT AND EMERGENCY EQUIPMENT Eye protection ie: goggles‚ visor. Hearing protection ie: ear muffs‚ ear plugs. BEFORE YOU START Ensure area is clear and all guards
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Different Types Of Air Compressors. written by: sriram balu • edited by: Lamar Stonecypher • updated: 2/24/2010 Though the reciprocating air compressor is the most commonly used one‚ there are also many different types of air compressors which are used in various industries. Get the insight about the reciprocating air compressor and rotary compressors like screw‚ lobe‚ vane and scroll compressors. Introduction: The usage of compressed air is not limited only to industries‚ but they are also used
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Be sure the data table is viewable. Right-click (PC) or Command-Click (Mac) on the table and select print. Part I: Density of Unknown Liquid Trial 1 Trial 2 Trial 3 Mass of Empty 10 mL graduated cylinder (grams) 26.0 Volume of liquid (milliliters) 8.5 Mass od graduated cylinder and liquid (grams) 30.7 Part II: Density of Irregular-Shaped Solid Trial 1 Trial 2 Trial 3 Mass of solid (grams) 39.67 39.25 42.126 Volume of Water (milliliters) 50.1 50.0 50.09
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Put in cup 7. Hold and swirl beaker 8. Record min. temp. 9. Dispose solution separate beaker 10. Rinse cup 11. Repeat for 2g‚ 3g‚ 4g‚ 5g Equipment: Balance Ammonium Nitrate powder Distilled water Spatula Glass beaker 30cm^3 Measuring cylinder Weighing boat Thermometer 0C Polystyrene cup and lid with hole Risk Assessment: Irritant to skin and eyes – wear gloves and goggles and labcoat Heating/Ignition source may cause violent combustion/explosion – keep away from naked flames Context
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