## Question

###### A stock solution of K S is available to prepare solutions that are more dilute. Calculate...

A stock solution of K S is available to prepare solutions that are more dilute. Calculate the volume, in ml., of a 2.0-M solution of KS required to prepare exactly 100 ml of a 0.130-M solution of Kys ml Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 10 item attempts remaining Click to try another version of this item. "Note that your response(s) and the points you have earned on this item will be cleared. Previous News) o ở a à a n g search

## Answers

Molarity of stock Volume of stock solution of K,S, M, = 2.0M solution needed, V, = ? Molarity of prepared Solution, M₂ = 0.130M volume of prepares solution, ₂= 100 ml from the Dilution equation, we have My & Me V₂ => 2:0Mx V, = 0.130m x 100 me => V = 0.130Mx 100 min 2.OM = 13 me = 6.5 me in 6.s me of 20 M required to prepare K₂S solution solution of K₂S is 100 ml of 0.130 M

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