Calculate concentration of an acid

In summary, calculating the concentration of sulfuric acid using a neutralisation equation requires knowing the formula weight of H2SO4, the formula weight of the neutralising base (either KOH or NaOH), the molarity of the base, and the amount of sample containing H2SO4. These parameters can be obtained from any analytical or general chemistry textbook. Further information may be needed about the sample form and any dilution that may be taking place in order to obtain the relevant equation.
  • #1
Physicsrapper
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How can I calculate the concentration of sulfuric acid with help of a neutralisation equation? (in mol/l or g/l)
Neutralisation takes place with either NaOH or KOH.

I've been searching for a tutorial for hours, but didn't find anything helpful.
Could someone please explain me how to do it? I would appreciate it a lot!
 
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  • #2
ANY, ANY GOOD analytical or general chemistry textbook will have instruction for this. Even an "elementary chemistry" textbook may have good information about neutralization titrations.You must know the :
Formula weight of H2SO4
Formula weight of either the KOH or the NaOH
Molarity of the KOH or the NaOH
Amount of sample containing the H2SO4

You may need to refer to the balanced written reaction for any help on ratios, if any needed.
H2SO4 + 2NaOH --------> Na2SO4 + 2H2O

What help do you need from here? How is your sample form? Liquid containing sulfuric acid? High concentration expected? Expecting volume taken and diluted? Expecting MASS taken and diluted? Expecting sample MASS or VOLUME but undiluted? If diluting, what size aloquot?
 
  • #3
This would become a lot easier if you could elaborate on the parameters you do have with you (volume of H2so4, molarity of base, etc). Once you mention that the relevant equation can be obtained.
 

What is the formula for calculating concentration of an acid?

The formula for calculating concentration of an acid is: concentration (in mol/L) = number of moles of acid / volume of solution (in L).

How do you calculate the number of moles of acid?

You can calculate the number of moles of acid by dividing the mass of the acid (in grams) by its molar mass (in g/mol).

What is the difference between molarity and molality?

Molarity is a measure of the concentration of a solute in a solution in terms of the number of moles of solute per liter of solution, while molality is a measure of the concentration of a solute in a solution in terms of the number of moles of solute per kilogram of solvent.

How do you convert between molarity and molality?

To convert from molarity to molality, use the formula: molality = molarity * molar mass of solute (in g/mol) / density of solvent (in g/mL). To convert from molality to molarity, use the formula: molarity = molality * density of solvent (in g/mL) / molar mass of solute (in g/mol).

What are some common units for concentration of an acid?

Some common units for concentration of an acid include molarity (mol/L), molality (mol/kg), and normality (equivalents/L).

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