Posted by **Kim** on Friday, November 5, 2010 at 6:04pm.

How many grams of BaCl2 are needed to make a 250mL of 15% solution?

- College Chemistry -
**DrBob222**, Friday, November 5, 2010 at 10:39pm
15% what? 15% w/w, w/v? If 15% w/v, then that means 15 g BaCl2 in 100 mL solution; therefore, for 250 mL you will need

15g x (250/100) = ??

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