October 6, 2015

Homework Help: chemistry...

Posted by mark on Friday, November 16, 2007 at 6:55pm.

thanks for the last help, i got the right answer!!

i got this wrong... (answer is supposed to be 0.165 but i put 0.0652)

A sample of Na2CO3 weighing 0.2863 g is dissolved in 50 mL of water and an endpoint is reached when 32.83 mL of HClO4 has been added. Calculate the molarity of the HClO4 solution.

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