A chemist attempts to prepare some very pure crystals of borax by dissolving 100g of Na2B4O7 in 200 grams of boiling water. He then cools the solution slowly until some borax crystallizes out. Calculate the grams of borax recovered in the crystals per 100 grams of initial solution (Na2B4O7 plus water), if the residual solution at 550C after the crystals are removed contains 12.4% Na2B4O7.What is the percent yield or percent recovery of Na2B4O7.

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Q: A 120.0 gram solution is prepared at 80° C that is saturated with NaNO3 (MW=85.0 g/mole; solubility…

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Q: A solution is prepared by dissolving 40.00 g of MgCl2 (f.w. = 95.211 g mol–1), a non-volatile…

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Q: A 16.0 g sample of quartz, which has a specific heat capacity of 0.730 J·g '.°C ', is dropped into…

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Q: A mixture of solvents contains 5 mol of solvent A and 10 mol of solvent B. Partial molar volume of…

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Q: 1. A solution containing 50% KOH is fed at a rate of 1000 mol/h to an evaporator to produce a…

A:

Q: A chemist has a 50.0 mL sample of 0.010 M Na₂C₂O4 at 25 °C (solution A, oxalate ion = C₂04²-). An…

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Q: If you know that sodium bicarbonate has a solubility of 8.4 g in 100g water at 18 °C I. Calculate…

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Q: The solubility of NH4B is 38g/100 mL of water at 20°C and 65g/100 mL at 80°C. 1. I add a certain…

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Q: A solution is prepared by dissolving 40.00 g of MgCl2 (f.w. = 95.211 g mol–1), a non-volatile…

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A:

Q: solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute, in…

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Q: Q1/ A solution was prepared dissolving 329 mg of K,Fe(CN), in sufficient water to give 750 ml.…

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Q: what is the maximum % recovery of TNT?

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Q: Q/ What are the difference between Simple distillation and Fractional distillation ?

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Q: 12. Recall that the freezing point is depressed by -1.86 °C per mole of solute per kg of water.…

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Q: The sign of the molar heat of solution (whether it is endothermic or exothermic) of a solid solute…

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Q: The solubility of sodium acetate is listed in reference books as 123g/100ml H2O @20C. What do these…

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Q: What is the change in solubility from 35oC to 55oC?

A:

Q: What substance is the least soluble at 15°C

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Q: how you plan to make 50mL of approximately 0.10M sodium acetate

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Q: How much 6.00% sucrose solution must be added to 5.00 Liters of 60.0% sucrose solution to dilute it…

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Q: A) Illustrate how do you prepare a stock solution of 0.01 g of NaNO2 in one liter of distilled water…

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Q: A 13.0-mL sample of saturated I2 (aq) is shaken with 13.0 mL of CC4. After equilibrium is…

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Q: 8) Determine the freezing point of a solution that contains 63.8 g of naphthalene (C10H8, molar mass…

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Q: ST5G.1- What is the approximate solubility [in units of MILLImolar] of an ionic compound M2X3 with…

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.