Posted by Morgan M on Sunday, March 18, 2012 at 9:41pm.
What's the molarity of the solution?
1,000 mL x 1.037 g/mL x 0.37 = ?g HCHO.
?g HCHO/molar mass = moles and that is the molarity since the solution is 1 L.Abut 13M but you need to do that more accurately than I.
final M = about 13M x (1.00/500) x (1.00/5.00) = ?
(Note: Technically we can't calculate the final M since the final dilution takes 1.00 mL and ADDS 4.00 mL water. The last step of the above calculation depends upon the 1.00 mL adding to 4.00 mL to give 5.00 mL. The way dilutions are made is that you would add 1.00 mL to enough water to make the total volume equal to 5.00 mL. In reality, I'm not sure we would be able to measure the difference.
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