A 0.4000 g sample that contained 96.4% Na2SO4 (142.04 g/mol) required 41.25 mL of barium chloride solution to reach the endpoint in a precipitation titration. What is the molarity of the BaCl2 solution?

0.0658 M

Explanation:

The reaction that takes place is:

Na₂SO₄(aq) + BaCl₂(aq) ↔ BaSO₄(s) + 2NaCl(aq)

First we calculate the number of Na₂SO₄ moles:

Now we convert to moles of BaCl₂:

Finally we divide by the volume to calculate the molarity:

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este

here are some of the ways in which chemical and nuclear reactions differ.

explanation: