21

11/17/50

24.043 gms of triply distilled water was added to
4.225 gms MnSO₄·H₂O to form 25 cc. 1. Molar
MnSO₄ solution

Percent H₂O in this solution = 97.9%

1/19/50

4.256 g. 99.5% D₂O was added to 0.507 g. MnSO₄·H₂O
to form a 4 cc. solution.

Molarity of MnSO₄ = 3/4
Volume of D₂O - 3.830 cc
Molarity of H = 1.28