User:Klare Lazor/Notebook/Chem-496-001/2013/02/11

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Objective

Description

'Crosslinking PVOH (MW:146,000-186,000) Films With 0.7M HCl and neutralizing .6 Molar sodium bicarbonate

  • To high of a molecular weight will remake with with a lower molecular weight
  • MW: 22,000 will be used instead for this....higher molecular weight is to thick for this type of reaction with crosslinking with glutaraldehyde
  • 20ml of 100% H2So4 in 1 L of H20 was use for the fixant will determine amount of H+ ions in solution to determine concentartion of HCL
    • 20ml* 1.84g/ml ÷ 98.079g/mol = 0.375moles of H2SO4 ÷ 1 Liter= 0.369 Molar H2SO4
    • assume complete dissociation
    • 0.369mols of H2SO4/L * 2mols HCl/1mol of H2SO4 = 0.7M HCl, which is equal to 6ml of 12 M HCl in 94 ml of H2O
  • To neutralize a NaHCO3 solution will be made, 0.7 M NaHCO3

Data

  • Add data and results here...

Notes

This area is for any observations or conclusions that you would like to note.


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