Solutions - 2
•
B.Calculations of solutions cont
=
d:
•
2.Weight per unit volume (w/v)
•
Make 1000 ml of a 0.85% NaCl
aqueous solution
•
0.85 gm
x
x gm
•
100 ml
1000 ml
•
100x
=
850
•
x
=
8.5 gm
•
so you would put 8.5 gm NaCl in flask
and add H
2
O to 1000 mark.