AP CHEMISTRY DILUTIONS

Question

Outline the correct laboratory procedure for diluting a stock solution of 18.4 M sulfuric acid to produce 1.0 L of 1.84 M sulfuric acid. Take care to include any calculations, safety procedures, and how you would use appropriate glassware in your answer.

Answer 1

Calculations:

V1M1 = V2M2

(x L)(18.4 M) = (1 L)(1.84 M)

x = 0.100 L

Wear gloves and eye protection.

Carefully measure 0.10 L of 18.4 M H₂SO₄ into a graduated cylinder.

Place several about 750 mls of d.H₂O in a 1 L beaker

Carefully add the 0.10 L H₂SO₄ to the 750 mls d. H₂O

Completely mix the H₂O/H₂SO₄ solution

Carefully transfer to a 1.0 L volumetric flask and bring the final volume to 1.0 L by adding d. H₂O