Pleae help me with this one Which of the following equimolar solutions had a low

Question

Pleae help me with this one

Which of the following equimolar solutions had a lower conductivity? Neither Na_2SO_4 NaCl Why? (Make sure you scroll down and look at all of the options) Na_2SO_4 produces 2 moles of Na^+ and 1 mole of SO^2-_4 per mole of Na_2SO_4 dissolved. Thus Na_2SO_4 produces more ions per mole of compound dissolved than NaCl. NaCl is a weaker electrolyte than Na_2SO_4. Na_2SO_4 produces 2 moles Na^+, 1 mole of S^2-, and 4 moles of O^2-, per mole of Na_2SO_4 dissolved. Thus Na_2SO_4 produces more ions per mole of compound dissolved than NaCl. NaCl produces 1 mole of Na^+ and 1 mole of Cl^- per mole of NaCl dissolved. Thus NaCl produces more ions per mole of compound dissolved than Na_2SO_4. Na_2SO_4 is a strong electrolyte and NaCl is not. Both NaCl and Na_2SO_4 are strong electrolytes so they conduct the same. Na_2SO_4 is a weaker electrolyte than NaCl. NaCl is a strong electrolyte and Na_2SO_4 is not.

Explanation / Answer

Na2SO4 -----> 2 Na+ + SO42-

1 mole of Na2SO4 produces 3 moles of ions

NaCl ----> Na+ + Cl-

1 mole of NaCL produces 2 moles of ions

So as the number of ions increases the conductivity of the solution also increases.

Therefore NaCl has lower conductivity

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.