After the basic solution is hydrated the process is then followed by complete dehydration to give solid iron oxide. Methods and Materials: Needed in the experiment was; * Crucibles‚ Metal rings‚ Wire triangles‚ Burners‚ Funnels‚ Filter Paper‚ Beakers‚ Glass rod‚ Diluted ammonium hydroxide solution‚ Nitric acid solution‚ Silver nitrate solution‚ NH4NO3 solution‚ Distilled water. Below are some methods used in experiment. fig.1 fig.2 Experimental Procedure: This experiment
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Implementation of active filters using OTA-C circuits Winter Training Report CONTENTS Title Page no. 1) Introduction to OTAs 2 2) Advantages of OTAs 3 3) First Order Filter using OTAs 4 4) Second Order Filter using OTAs 5
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to react with Sulphuric Acid to get Copper Sulphate. EQUIPMENT USED: o 5 Grams of Carbon Carbonate o Weighing Boat‚ Spatula & Scales o 25 cm³ Sulphuric Acid o Beaker o Tripod and Gauze o Bunsen burner‚ Splint and Matches o Filter Funnel and Filter Paper o Conical Flask o Glass Dish RISK ASSESSMENT: o Sulphuric Acid – Corrosive o Safety Glasses and Lab Coats to be worn o Any Spillage‚ dilute with water and clear IMMEDIATELY METHOD: o Weigh out approximately 5 grams of Copper
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Gravimetric Analysis: The Determination of Phosphorus in Plant Food Gravimetric analysis is a quantitative (i.e. how much?) method of classical analysis. The element to be determined is isolated in a solid compound of known identity and definite composition. The mass of the element that was present in the original sample can be determined from the mass of this compound. Plant foods contain three essential nutrients that are not readily available from soils. These are soluble compounds
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- INFORMATION FOR GRAVIMETRIC ANALYSIS (THEORY SECTION) http://www.dartmouth.edu/~chemlab/techniques/vfiltration.html - INFORMATION ON SUCTION FILTRATION (THEORY SECTION) http://www.laboratoryequipmentworld.com/filtering-flasks.html- THE USE OF A FILTER FLASK (THEORY SECTION) http://en.wikipedia.org/wiki/Gravimetric_analysis - COMPARING RESULTS AND PROCEDURES WITH INTERNET SOURCES (DISCUSSION SECTION)
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Introduction The aim of this experiment is to see the effect of different Pectinase concentrations have on the production on apple juice. Pectinase is an enzyme‚ which breaks down pectin‚ a polysaccharide found in plant cell walls. This enzyme is mainly commercially used to speed up the process of fruit juice production as the cell walls of plants are broken down more quickly. Therefore by changing the Pectinase concentrations‚ the results may show the effects it may have on how much apple juice
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Filtration Filtrate White needle-like crystals Residue Cloudy white liquid with slightly undissolved solids Crude Aspirin White needle-like crystals Table 4. Recovery Data. Recrystallized Aspirin Wt. of watchglass + filter paper 53.081g Wt. of watchglass + filter paper + product 55.995 Weight of product 2.914 Theoretical Yield 2.61g % Yield 111.65% Table 5. Melting point determination. Crude Aspirin Recrystallized Aspirin Melting point 118-130°C 134-136°C Literature value 135°C
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Breaking up is hard to do – Separating Sand & Salt Purpose: The purpose of this experiment is to separate a mixture of sand and salt. Materials: Small beaker Electric balance Sand Salt Water Graduated cylinder Stirring rod Filter paper Flask Rubber policeman Wash bottle Funnel Bunsen burner complete with rubber tubing and a source of gas Hot hands Insulator pad Ring stand complete with a ring Wire gauze Striker Pre-lab Questions: 1. Water will be useful in separating the salt and sand because
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Ring with ring stand Funnel Wire triangle Stirring rod Filtering paper Beakers (400mL and 250mL) Rinse bottle Evaporation dish Digital balance Calculator Hot plate (stove top) Salt/sand mixture Procedure Weigh your dish(in grams) and filter by there selves and write it down. Put your wire triangle on your ring attached to the ring stand . Place the funnel down inside of the wire triangle. Fold your filter paper (as shown in figure 4.8) and put inside of the funnel. Mix together
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reaction mixture * Folding the filter paper * Pouring the reaction mixture into the filter paper in the funnel * Placing the product on the paper towels to dry Experimental Step | Observations | Mass of CaCl2•2 H2O used (grams) | | Mass of Na2CO3 used (grams) | | Net mass of mixture‚ grams | | Appearance of mixture when the reactants are mixed together | | Mass of filter paper (grams) | | Appearance of dry product | | Mass of filter paper and dry product (grams) | |
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