Homework Help: Chemistry

Posted by Mallory on Tuesday, October 26, 2010 at 4:37pm.

A buret (initial and final buret reading were 2.20 mL and 11.86 mL) was used to deliver a sample of 2.1E-5 M stock dye into a 25.0 mL volumetric flask. The dye was then diluted with water to exactly 25.0 mL. Calculate the molarity of the resulting solution.

Chemistry - DrBob222, Tuesday, October 26, 2010 at 4:42pm
You delivered from the buret exactly 11.86-2.20 = ?? mL of the dye.
Final concn then = 2.1E-5 x (??mL/25.0 mL) = xx M

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