Lab proposal Report Example | Topics and Well Written Essays - 1250 words - 1

Proposal - Lab Report Example Do not put the whole mixture in an instance. Put it lowly and let it filter through the filter paper and then ad some more amount slowly. Overfilling the funnel will ruin the filtration. 10. After emptying the beaker, take 5ml of distilled water and wash the beaker and rinse it into the filter paper assembly. It will help transfer any remaining particle of sand to the filter paper. Rinse the beaker again with 5ml of distilled water and repeat the step. Take 5ml distilled water and rinse the stirring rod. 12. Give it some time so that all the water from the filter water is transferred to the flask. Now carefully separate the filter paper from the funnel and let it rest on the watch glass. Dry the filter paper with the help of microwave oven or let your instructor dry it. 18. Place the beaker once again on the hot plate let it there for a little while. Let it come to room temperature again and gain note the mass of the beaker. If it is lees than the previous reading keep the reading and eliminate the previous reading. Keep the lower reading. But note do not over heat the beaker or do not overheat the dried salt. Mixture is a combination of two or more than two pure substances in which pure substances are combined physically not through a chemical reaction. The pure substances present in the mixture can be separated easily. Examples of natural mixtures are air, sea water, river water, etc. however, mixtures can be made by humans for various purposes; paint is an example of mixtures that is manufactured industrially and used extensively. In every day life mixtures are every where. Juices, mixed spices, salad dressing, etc are all mixtures. Homogeneous mixture is a mixture in which the components of the mixtures are mixed in such a manner that none of the component is visible. It is impossible to see the particles of the mixed components. Example of homogeneous mixture are salt and water