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2007-06-05 17:23:53 · 4 answers · asked by tibguitarbabe 1 in Science & Mathematics Chemistry

4 answers

concentrations of acids are measured in Molarity (M). A 1 molar solution is 1 mol of something in 1 L of solution.

2007-06-05 17:30:06 · answer #1 · answered by Anonymous · 0 0

In general you can determine the concentration of an acid by titration with a standard (known) solution of a base, such as NaOH using the relationship: mL x Normality = mL x Normality. Since NaOH is a strong base and H2SO4 is a strong acid, phenolphthalein would be an acceptable indicator.

If you are trying to determine the concentration of concentrated H2SO4, you will probably want to dilute an accurately measured sample (say 10.00 mL) in a volumetric flask to 1000 mL and then titrate an aliquot of the diluted acid (say 10.00 mL) with 0.1000 N NaOH to the end point.

Since H2SO4 has 2 replaceable H+, its normality is twice its molarity. From the definitions of Molarity (or Normality) you can calculate the moles of H2SO4 and then the grams of H2SO4 in a sample.

2007-06-05 18:08:53 · answer #2 · answered by skipper 7 · 0 0

If this helps the concentration of concentrated H2SO4 is 18M. You can then use this concentration to determine the molarities of dilute H2SO4 solutions. For instance if you diluted concentrated H2SO4 in half the molarity would be 9M. To calculate other concentrations use the equation M1V1 = M2V2. I hope this helps.

2007-06-05 17:38:08 · answer #3 · answered by drochem 5 · 0 0

idk

but I believe the best concentration is 38%

Little Johnny used to drink
but now he drinks no more
for what he thought was H2O
was H2SO4

2007-06-05 17:29:10 · answer #4 · answered by tom4bucs 7 · 0 0

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