CALCULATE THE MASS% OF SULPHURIC ACID IN A SOLUTION PREPARED BY DISSOLVING 4g OF SULPHUR TRIOXIDE IN A 100ml SOLUTION CONTIANING 80 MASS% OF H2SO4 AND HAVING DENSITY OF 1.96g/ml. HEXANE AND ANILINE ARE PARTIALLY MISCIBLE.AT 25C,0.5 MOLE OF HEXANE AND 0.5 MOLE OF ANILINE ARE SHAKEN TOGHETHER & ALLOWED TO SETTLE.TWO LAYERS ARE SEEN.ON ANALYSIS,LAYER A RICH IN ANILINE IS 10 MOL% & WHILE LAYER B HAS 70 MOL% OF HEXANE. WHAT IS MOL RATIO OF A&B? SODIUM SALT OF METHYL ORANGE HAS 8% Na. WHAT IS MINIMUM MOLECULAR WT. OF COMPOUND? 4. A FLUORINE DISPOSAL PLANT WAS CONSTRUCTED TO CARRY OUT THE REACTIONS: <!-- /* Font Definitions */ @font-face {font-family:"Book Antiqua"; panose-1:2 4 6 2 5 3 5 3 3 4; mso-font-charset:0; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:647 0 0 0 159 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0in; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} @page Section1 {size:8.5in 11.0in; margin:1.0in 1.25in 1.0in 1.25in; mso-header-margin:.5in; mso-footer-margin:.5in; mso-paper-source:0;} div.Section1 {page:Section1;} --> F 2 +2NAOH = 1/2 O 2 +2NAF+ H2O 2NAF+CaO+H2O = CaF 2 + 2NaOH AS THE PLANT OPERATED, EXCESS LIME WAS ADDED TO BRING ABOUT COMPLETE PPT OF FLUORIDE AS CaF 2. OVER A PERIOD OF OPERATION, 1900KG OF FLUORINE WAS FED TO THE PLANT AND 10,000KG OF LIME WAS REQUIRED.WHAT IS % UTILISATION OF LIME?

1. CALCULATE THE MASS% OF SULPHURIC ACID IN A SOLUTION PREPARED BY DISSOLVING 4g OF SULPHUR TRIOXIDE IN A 100ml SOLUTION CONTIANING 80 MASS% OF H2SO4 AND HAVING DENSITY OF 1.96g/ml.


2. HEXANE AND ANILINE ARE PARTIALLY MISCIBLE.AT 25C,0.5 MOLE OF HEXANE AND 0.5 MOLE OF ANILINE ARE SHAKEN TOGHETHER & ALLOWED TO SETTLE.TWO LAYERS ARE SEEN.ON ANALYSIS,LAYER A RICH IN ANILINE IS 10 MOL% & WHILE LAYER B HAS 70 MOL% OF HEXANE. WHAT IS MOL RATIO OF A&B?


3. SODIUM SALT OF METHYL ORANGE HAS 8% Na. WHAT IS MINIMUM MOLECULAR WT. OF COMPOUND?

     4.  A FLUORINE DISPOSAL PLANT WAS       CONSTRUCTED TO CARRY OUT THE REACTIONS:

 

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F₂ +2NAOH  =   1/2 O₂ +2NAF+ H2O

                        2NAF+CaO+H2O = CaF₂+ 2NaOH

AS THE PLANT OPERATED, EXCESS LIME WAS ADDED TO BRING ABOUT COMPLETE PPT OF FLUORIDE AS CaF_{2. OVER A PERIOD OF OPERATION, 1900KG  OF FLUORINE WAS FED TO THE PLANT AND 10,000KG OF LIME WAS REQUIRED.WHAT IS % UTILISATION OF LIME?}