Water not bound in the hydrate, Chemistry

Assignment Help:

A water solution have 64% Na2S2O2  together with 1.0% soluble impurity.  Upon cooling to 5°C, Na2S2O2·5H2O. crystallizes out.  The solubility of this hydrate is 1.35 lb Na2S2O2·5H2O per lb free water (water not bound in the hydrate),  The crystals teke away carry as adhering solution 0.06 lb solution/lb crystals.  When dried to took away the remaining water (but not the water of
hydration), the ?nal dry Na2S2O2·5H2O crystals must not have more than 0.1% impurity.  To meet this speci?cation, the original solution, before cooling, is further diluted with water.  In order to make 1000 lb's of dry crystal (hydrated), how many pounds of feed are required?  (Hint:  This problem is best solved using a spreadsheet.   Help on the spreadsheet will be available
Thursday in recitation - but do not wait until then to attempt the problem!)   The spreadsheet will be graded on how well it solves the problem and the quality of presentation of the spreadsheet and the work.  (Additional hint, the problem is simpler to solve if you track some "pseudo" components such as "free" water or "hydrated" crystals.  Sketch a picture of the process breaking it into small steps.  Have the spreadsheet do the calculations for every step for all components, real and "pseudo".  By changing the amount of water you add at the start your spreadsheet should display you the results in the ?nal product.)


Related Discussions:- Water not bound in the hydrate

What are the cationic and neutral ligands, Q. What are the Cationic and neu...

Q. What are the Cationic and neutral ligands? The names of all anionic ligands end in '0' replacing the final 'e' in endings. Sometimes endings are also changed. Thus the given

Sucrose, chemical reacation of sucrose

chemical reacation of sucrose

Weight of one mole of oxygen molecule, If a mole were to have 1*10^24 parti...

If a mole were to have 1*10^24 particles what is the weight of one mole of oxygen molecule and 1 molecule of oxygen Ans) Since the gram molecular mass remains the similar...weig

Acid refractory : application and examples, what are the acid refractory an...

what are the acid refractory and its application and examples?

Organic chemistry, what is the structural formula of Hexane-1,6-dioic acid

what is the structural formula of Hexane-1,6-dioic acid

How two amino acids combine to form a dipeptide, Draw a reaction scheme wit...

Draw a reaction scheme with line-bond structures that illustrates how two amino acids combine to form a dipeptide. What conformation does the peptide bond usually adopt?

Basic chem, need help with calculating gases

need help with calculating gases

Treshold frequency, How is threshold frequency related of the incident radi...

How is threshold frequency related of the incident radiation

Explain laws of electrolysis, Q. Explain laws of Electrolysis? Ans . ...

Q. Explain laws of Electrolysis? Ans . A  spontaneous reaction  takes place by itself. Some redox reactions are not spontaneous. In a  no n-spontaneous redox reaction ,

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd