Question 2 It is desired to produce 1000 kg/hr of Na,SO.. 10 H¿O crystals from a feed aqueous solution containing 5.6% w Na,SO,. The original solution is first evaporated in an evaporator to a 35% wt solution and then cooled to 293K in a crystallizer, where the hydrated crystals and the mother liquor are removed. One out of 10 kg of mother liquor is discarded to waste to get rid of impurities and the remaining mother liquor is recycled to the evaporator. The solubility of Na,SO, at 293K is 9.91% wt. Calculate the feed rate in kg/hr; H,O evaporated in kg/hr and the mother liquor recycled in kg/hr.

Q: When 23.6 g of calcium chloride, CaCl2, was dissolved in water in a constant-pressurecalorimeter,…

A: Given that, Mass of CaCl2 = 23.6 g,  molar mass =111 g/mol Hence, moles of CaCl2 is calculated as:…

Q: We need to produce a hot “dry air” stream to be used in a spray drying process, and this stream must…

A: Given data: Composition of water in humid air entering the condenser = 10 mol % Temperature =- 90 0C…

Q: 4500 kg/h of a solution that is 1/3 K2CrO4 by mass is joined by a recycle stream containing 36.4 %…

A: Note: Since we are entitled to answer only 3 sub-parts, we’ll answer the first 3. Please resubmit…

Q: QI/A 0.1 mole% caustic soda (NaOH) solution is to be (concentrated in a continuous evaporator. The…

A:

Q: Benzene / Toluene System. A rectification column is fed 100 kgmole/hr of a mixture that is 50 mole…

A: Hello! Since you have submitted multiple subparts and haven't specified which one to solve, we will…

Q: Zn is to be recovered from an ore containing ZnS. The ore is first roasted with oxygen to produce…

A: The stages required are roasting and electrolysis. Roasting: Zinc sulphide is converted to zinc…

Q: In the manufacture of nitric acid, pure dry sodium nitrate is treated with 95% (weight) sulphuric…

A:

Q: 6. Diffusivity. the diffusivity of volatile solvents is frequently measured using an Arnold cell.…

A:

Q: A solution containing 10% NaCl, 3% KCl and 87 % water is fed to the process shown in the following…

A: Apply mass balance on the system or corresponding individual unit to obtain unknowns. Apply…

Q: CaCO3 precipitate can be produced by reaction of an aqueous solution of Na2CO3 and CaO, the…

A:

Q: It is desired to concentrate 5000 kg.hr of a solution of NaOH from 10 % to25% solids in a single…

A: Given thatF =m1 = 5000 kg/hrC1 = 0.1C2 =0.25Ts =110 CP =410 mm HgTBP =84 CTsoln  =10 CHf  =90…

Q: [Vaporization/Condensation] Air at 30°C and 750 mm Hg has a %humidity of 60. Calculate the pressure…

A: Hi and thanks for the question. Since you have posted multiple questions and didn't specify which…

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

A:

Q: 100 mol/h of gaseous ethane is burned with excess air. The fuel is mixed with air before entering…

A: Given data: Molar flow rate of ethane = 100 mol/h Composition 0f stack gas is as follows: CO2 = 5.32…

Q: Seawater containing 3.50 wt% salt passes through a series of 10 evaporators. Roughly equal…

A:

Q: A mixture of 40 mol% isopropanol in water is distilled at 1 atm by batch distillation carried out in…

A:

Q: CMC of a surfactant in water at 25 oC is 0.5 g L−1 and at 45 oC is 0.3 g L−1. The molar mass of the…

A:

Q: Maleic anhydride with 10% benzoic acid is a byproduct of the manufacture of phthalic anhydride. The…

A: It is to be stated whether the problem is specified completely or not.

Q: Q4 (2 In the process of producing methyl ethyl ketone from butanol, the distillation technique is…

A: Step 1: Use Fenske equation to determine the minimum number of stages. By substituting the given…

Q: L-Serine is an amino acid that often is provided when intravenous feeding solutions are used to…

A: Given data: Composition of serine solution is, Serine = 30 % Water = 70 % Amount of crystal…

Units and Dimensions

Dimensions are the basic concepts of the measurement of quantities. Units are the means of expressing the dimensions. For instance, an area has a dimension of L2 and a unit of m2.