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Osmotic pressure:
Osmosis process is the movement of a solvent from a solution of lower solute concentration (higher solvent concentration) to one of the higher solute concentration (lower solvent concentration). In osmotic pressure measurements a semi-permeable membrane. It is permeable only to solvent (as it have holes that are small enough to prevent large solute molecules passing through) separates two liquids. This means that this technique is used for relatively large molecules, often polymers or biological macromolecules. Typically, one liquid is pure water and the other is the solute solutions of interest. This produces a flow of water from the solvent to the solute solutions. The experimental apparatus (Fig. 1) incorporates one for each liquid, two identical vertical columns, and the height of the liquid in the solution columns increase relative to that in the pure solvent column due to this net flow.
Fig.1. Schematic diagram of the apparatus for measuring osmotic pressure. (a) Apparatus at the start of the measurement; (b) apparatus at equilibrium
Principle underlying the quantitative analysis: In flame photometry, the thermal energy from flame is utilized to convert the analyte within gaseous atoms and then to excite t
conclusion for assignment on topic applications of colloids
why zinc extracted from zinc oxide through reduction with co? Ans) Reducing agent should have more negative ΔG value. In case of zinc oxide ,Zn has more negative ΔG value then CO
RL, a 28-year old first time father, was watching his 4-month old baby for the weekend while his wife was away at a sales meeting. Things were going well. He had run out of breast-
observation table with solution
How to prepare chemistry assignment on deodrants
Molecular weight of orthophosphoric acid is M. Its equivalent weight is
#question.reactions of s-block element?.
conclusion of the topic?
Q. Explain about Dihalide? Dihalides: Dichlorides and dibromides are formed by the lower members of the group, viz., Se, Te and Po. These are formed mainly by dissociation of t
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