Recent content by g07l0989

  1. G

    How does one prepare a 100ml of a 0.1M sodium phosphate buffer?

    thank you a lot that relly helped me thanks ciao...
  2. G

    How does one prepare a 100ml of a 0.1M sodium phosphate buffer?

    any which would give a pH of 7.6 so i ges you would have to look at the pKa to decide which to use
  3. G

    How does one prepare a 100ml of a 0.1M sodium phosphate buffer?

    bu cos i need the sodium ions anyway ignore the NaCL how would you do it??
  4. G

    How does one prepare a 100ml of a 0.1M sodium phosphate buffer?

    how would you prepare a 100ml of a 0.1M sodium phosphate buffer containing 0.5M NaCl,pH7.6 using henderson hasselbach equation??what chemicals would you use n how would you go about it
  5. G

    What is the concentration of blood plasma under normal conditions?

    what is the concentration of blood plasma under normal conditions?? how do you even begin to answer this question HELP!
  6. G

    Gravimetric analysis of a carbonate

    question during a gravimetric anaalysis of a carbonate sample ,0.100g sample was titrated with excess acid the resultant carbon dioxide was collected in 40.0cm3 of 0.05 mol/dm3 Ba(OH)3 solution: MCO3 + 2H=M+CO2 CO2+ Ba(OH)2=BaCO3 +H2O Ba(OH)2 uses 22 cm3 of a 0.091 mol/dm3 HCl calculate...
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