- 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;} --> 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 CaF2. 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?
- 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;} -->
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 CaF2. 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?
aku -- kumar , 14 Years ago
Grade 12
