Question

A 0.10 M aqueous solution of sodium sulfate, Na2SO4 , is a better conductor of electricity than a 0.10 M aqueous solution of sodium chloride, NaCl. Which of the following best explains this observation?

Answer 1

See explanation

Step-by-step explanation:

You are not providing any observation, however, I can give you the correct answer for this.

First, let's write the equation for both compounds

NaCl:

NaCl <--------> Na^+ + Cl^-

Na2SO4:

Na2SO4 <--------> 2Na^+ + SO4^2-

As you can see, despite they are both salts, and have the same concentration in solution, the solution of Na2SO4 has more ions in solution. NaCl has only 1 positive ion and 1 negative, while Na2SO4 has 2 of each charge.

These ions in solution indicates which one is the best to conduct electricity. That's the only reason why Na2SO4 is a better conductor, has more ions in solution than NaCl