Part Three

Determine the concentration of an H₂SO₄ solution via titration with 0.100 M

NaOH. Here H₂SO₄ is the analyte and NaOH is the titrant. Each laboratory partner

should successfully complete one titration of the H₂SO₄ solution following the

general steps on the previous page. Use a 10.00 mL volumetric pipet to add the

analyte to the Erlenmeyer flask. Add additional water to the flask to bring the

total volume to somewhere between 25 and 50 mL. Check that your laboratory

partner does the following when completing their titration:

•Is analyte added to flask with volumetric pipet?

•Is the indicator added to the flask?

•Is the initial volume of buret recorded to 2 decimal places?

•Does the solution turn color with the addition of one drop or less of

titrant solution?

•Is final volume of buret recorded to 2 decimal places?

•Is waste solution appropriately disposed of?

Sample Data Table for Part Three

•Volume of H₂SO₄ Added to Flask (mL):

•Molarity of NaOH (M):

•Initial Volume Reading of Buret (mL):

•Final Volume Reading of Buret (mL):

•Volume Added (mL):

•Moles of NaOH Added (moles):

•Moles of H₂SO₄ in Flask (moles):

•Molarity of H₂SO₄ (M):

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