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

Write the neutral calcium atom has a number, Write the neutral calcium atom...

Write the neutral calcium atom has a number The neutral calcium atom has a number of valence electrons euivalent to its group number, that is 2.

Smell - physical characteristics of carbonyl compounds, Smell - Physical ch...

Smell - Physical characteristics of carbonyl compounds Along with the exception of lower aldehydes that have unpleasant odours, aldehydes and ketones have usually pleasant smel

Explain enantiomer, Explain enantiomer The two structures differ in con...

Explain enantiomer The two structures differ in configuration at both asymmetric carbons. They are enantiomers.

Iodoform, preparation of iodoform

preparation of iodoform

Food scince, what is the significance of BR in ghee?

what is the significance of BR in ghee?

GFAAS, GFAAS is often necessary to add modifiers in order to increase the s...

GFAAS is often necessary to add modifiers in order to increase the sensitivity of the techniques.Giving example explain the principles used in the selection of such modifiers,be ca

Define why the glocose and fructose form the same osazone, Glucose and fruc...

Glucose and fructose are epimers so they are differ in their second carbon position and remaining is same so when they react with phenylhydrazeen they give same osazone

Ionisation enthalphy, what is the relevance of half filled and completely f...

what is the relevance of half filled and completely filled orbitals in ionisation enthalphy ditermination

Trihydric alcohol, What are trihydric alcohols? What are their preparation ...

What are trihydric alcohols? What are their preparation methods? What are their physical properties?

Hell volhard-zelinsky reaction - carboxylic acids, Hell Volhard-zelinsky re...

Hell Volhard-zelinsky reaction In presence of Red P and diffused light or Hell Volhard-zelinsky reaction Carboxylic acid comprising an α-hydrogen react with Cl 2 or Br 2 i

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