5 g of Nacl is dissolved in 1000 g of water if the density of the resulting solution is 0.997 g per ml calculate the molality ,mol

1 thought on “5 g of Nacl is dissolved in 1000 g of water if the density of the resulting solution is 0.997 g per ml calculate the molality ,mol”

1. Correct option is

   B

   0.2 M

   2KMnO

   4

   +5H

   2

   C

   2

   O

   4

   +6H

   +

   →2Mn

   2+

   +10CO

   2

   +8H

   2

   O

   5×M

   KMnO

   4

   ×V

   KMnO

   4

   =2×M

   H

   2

   C

   2

   O

   4

   ×V

   H

   2

   C

   2

   O

   4

   5×M

   KMnO

   4

   × 100 mL =2× 0.5 M × 100 mL

   M

   KMnO

   4

   =0.2 M.

   The molarity of KMnO

   4

   solution is 0.2 M.

   Reply