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Every precipitate will be collected using a Hirsch funnel. Make definite that the plastic frit disc is firmly snapped in place in your focus. Replacement frit discs are available in case it become clogged or otherwise broken. Attach the funnel to a filter flask, using the neoprene adapter to ensure a good seal among the funnel and the flask. Attach the filter flask to your vacuum line and turn the vacuum on. Swirl the precipitate in solution and quickly pour the mixture onto the filter (while the solids are still suspended). Rinse the precipitate with a minimal amount of ice-cold water. Leave the space on until the precipitate is dry (~5 min.), and take note of the mass.
(a) De?ne surveying. Brie?y describe about chain and accessories. (b) Sketch the plan and suitable section of a single room having 5.0 m X 4m size and 3m height. Assume the ba
Q. Name the Oxide Minerals? These minerals consist of oxides of metals, which are formed either by oxidation of sulphide minerals or by direct oxidation of metals. Highly elect
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The state of a galvanic cell without liquid junction, when its temperature and pressure are uniform, can be fully described by values of the variables T, p, and ξ. Find an expressi
Physical properties of Halo-arenes (i) Physical state: they are colourless liquid or crystalline solid. (ii) Solubility: Halo-arenes are not soluble with water, but dissolve
Q. Define the Spectrochemical series? Spectrochemical series helps us in renationalising the differences in the spectral properties of complexes. As the strength of the crystal
Determine about the Antiferromagnetic materials Antiferromagnetic materials are materials in which almost all magnetic dipoles are linked up antiparallel to each other. Its sus
Approximate the torque and power necessary to rotate the inner 20 cm diameter cylinder shown in Figure 1. SAE 10W-30 oil at 20°C fills the gap. Assume a linear velocity profile.
Q. How many degrees of freedom has a system consisting of solid NaCl in equilibrium with an aqueous phase containing H 2 O, NaC(aq), Cl (aq), HC(aq), and OH (aq)? Would it be possi
Some enzymes require other associated molecules to work. These molecules are known as enzyme cofactors and they can be, for example, organic ions, like mineral salts, or organic mo
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