Research on the process of desalination with the use of distillation. Write how vapor-pressure lowering is utilized and draw a simple illustration on how the process undergoes.
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- Choose any (1) liquid compound and indicate the following:1. What limitations are encountered in the application of sublimation as a general method of purification? 2.Explain how a process of fractional sublimation might be applied to a mixture of two substances which sublime closely together.Compound Melting Point (oC) Electrical Conductivity of Molten State (ohm-1) BeCl2 405 0.086 MgCl2 714 >20 SiCl4 -70 0 MgF2 1261 >20 Using principles of Melting Point and/or Electrical Conductivity of Molten State, explain each of the following: (a) MgCl2 and SiCl4 (b) MgCl2 and MgF2 Note: Please Explain
- A compound ‘A’ on heating at 370 K gives ‘B’ used as plaster for supporting fractured Bones in the right position. ‘B’ on mixing with water changes to ‘A’. Identify ‘A’ and ‘B’ And write the chemical reaction.(a) Read the following burette and graduated cylinder and record your answer in the spaces provided below. -30 6 -20 7 -10 (i) Burette reading: (ii) Graduated cylinder reading: (iii) What is the name of the level of the liquid in the burette which we read? (iv) Water is a solvent. Therefore, it dissolves compounds and compounds. The H-O-H angle of water is (v) When ammonia is mixed with water, it and produces ions which make the solution basic. (vi) Water exists in three , namely solid, liquid and gas. As a solid, water is called and as a gas water is called (vii) The for H20(g) and H2O(t) are -241.85 kJ/mol and -285.85 kJ/mol, respectively. Therefore, the of water is +44.00 kJ/mol. 1 (b) An unknown mass of Na3PO4(s) is dissolved in water to form 50.00 mL of solution. This is Solution A. Then 10.00 mL of Solution A is diluted with water to 50.00 mL. The final solution is Solution B. 20.00 mL of Solution B contains 4.408 x 1020 sodium ions. (NA = 6.022 x 1023 mol-1) Calculate the mass…Give a brief introduction on the following topic i.e. (solids: recrystallization and melting points experiment) Should be a page long
- How do calcium ions in water affect the textural properties of products during cooking in water? please explain detailedThe solubility of water in diethyl ether has been reported to be 1.468 % by mass.' Assuming that 23.0 mL of diethyl ether were allowed to become saturated with water before used, and that the 1.2 g magnesium was the limiting reagent, what percentage of the product is expected to be lost due to the water in the solvent if the ether is not anhydrous?12 (a) (b) Describe how you can obtain the integrated form of the Clapeyron equation as below. State any assumptions you have to make. Afus H (T-T) P₂≈ P₁+ AfusV T₁ The heat of fusion (Afus H) of Hg at its normal melting point (-38.9 °C) is 2.82 cal.g¹. The densities of Hg(s) and Hg(1) at -38.9 °C and 1 atm are 14.193 and 13.690 g cm Estimate the melting point of Hg at 100 atm using the result in (a). respectively. Ans 234.8K or -38.4°C