varanuch Posted February 15, 2007 Share Posted February 15, 2007 How would i prepare a 100 mL primary standard solutin of .01 M KIO3? I started with molarity= moles of solute/liter of solution and got .001 moles of solute. Then i used .001 moles times 214 (MW) to get .214 grams...now what do i do?? Link to comment Share on other sites More sharing options...
Darkblade48 Posted February 15, 2007 Share Posted February 15, 2007 Take your mass of KIO3 and dissolve in 100 ml water to obtain your 0.01M solution. Link to comment Share on other sites More sharing options...
woelen Posted February 15, 2007 Share Posted February 15, 2007 Not exactly. Dissolve in less than 100 ml of water, and then add water while stirring, such that the total volume is 100 ml. With this 0.01 M solution Darkblade's method will only introduce a marginal error, but with more concentrated solutions the error may become considerable. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now