Question

How can one make a standard solution of 0.002 mol dm^-3 KOH ? Thanks:)

Answer 1

you want to prepare 1 liter of 0.002 Molar solution of KOH
molar mass of KOH is = 56.10
56.10 gram in 1000 ml (1LITRE) =1M
5.610 gram in 1000 ml =0.1M
0.5610 gram in 1000 ml = 0.01M
0.05610 gram in 1000 ml =0.001M
0.05610*2 gram in 1000 ml = 0.002 M
0.112 gramin 1000ml =0.002M

Answer 2

short cut is also there but it is just simple and lengthy procedure :)

Answer 3

oh ok thanks :)

Answer 4

ur welcome :)