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Home Q & A Board Biology-Related Homework Help Cell Biology
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Bugrahan Bugrahan
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12 years ago
I understand the formula for Molarity is..

Molarity = moles of solute / liter of solution

Basically, here is my problem.

I'm trying to find the Molarity of .75L of 4HCl when the pH value of 4HCl is 1.1

What process would I go through to find the Molarity?
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buggingout16buggingout16
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12 years ago
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12 years ago
Since you ahve the pH you can calculate the concentration of H+ by using this formula:

H+=log(pH)

Since there is one H+ in each HCl-molecule the concentration of H+ is equal to the concentration of HCl, but be careful if there are more than one H+ in the molecule.

I don't see why you need the volume though, unless you need to calculate the ammount of moles in which you simply multiply the concentration with the volume.

log(1.1)=0.04139mol/dm^3
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