Starting with 50cm³ of 2.8M sodium hydroxide, describe how a sample of pure sodium sulphate crystals can be prepared
2 answers
I don't know
millimoles NaOH initially = mL x M = 50 mL x 2.8 M = 140
2NaOH + H2SO4 ==> Na2SO4 + 2H2O
Start with 50 cc of 2.8 M NaOH, add140/2 = 70 millimoles H2SO4, allow the solution to cool, heat to remove the water and dry the Na2SO4 crystals in an oven @ 105 C. Done.
2NaOH + H2SO4 ==> Na2SO4 + 2H2O
Start with 50 cc of 2.8 M NaOH, add140/2 = 70 millimoles H2SO4, allow the solution to cool, heat to remove the water and dry the Na2SO4 crystals in an oven @ 105 C. Done.
4 answers