Respuesta :
3.36ml volume of of 0.585 m KCL solution is needed to make 0.196m kcl solution.
Molarity is a measure of the concentration of a chemical species, in particular of a solute in a solution in terms of amount of substance per unit volume of solution. The unit for molarity is the number of moles per liter. It has the unit symbol mole/l.
here, 100ml of 0.196m Kcl solution made. Moles of the solution is given by the expression,
Moles = Molarity . volume (in liter)
Moles in 100ml 0.196 m Kcl solution= Molarity . volume in liter
= 0.196 . 0.1
= 0.0196 mole
We know that 1ml is equal to 0.001L. By converting this value and put it in the expression we get the value of mole.
Volume= moles/molarity
Volume of the 0.585m KCl solution = moles /molarity
= 0.0196/0.585 L
=0.033504 L= 3.3504 ml
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