Answer: -
If 13.3 mole of Co(NO₃)₂ are reacted, 26.6 mole of NaNO₃ are produced.
Explanation: -
The balanced chemical equation for the production of NaNO₃ from Co(NO₃)₂ is
Co(NO₃)₂ + Na₂SO₄ → 2 NaNO₃ + CoSO₄
From the balanced equation we see that
1 mole of Co(NO₃)₂ gives 2 moles of NaNO₃
13.3 mole of Co(NO₃)₂ gives
moles of NaNO₃
= 26.6 mole of NaNO₃