Answer:
1.63 g of H₂O is the theoretical yield
Explanation:
We determine the reactants for the reaction:
HCl, NaOH
We determine the products for the reaction:
H₂O, NaCl
The equation for this neutralization reaction is:
HCl (aq) + NaOH(aq) → NaCl(aq) + H₂O(l)
We use both masses, from both reactants to determine the limiting.
First, we convert the mass to moles.
3.3 g . 1mol / 36.45 g = 0.090 moles of HCl
6.6 g . 1mol / 40 g = 0.165 moles of NaOH
Ratio is 1:1, so for 0.165 moles of hydroxide I need the same amount of acid. I have 0.090 HCl so the acid is the limiting reagent.
Let's work with stoichiometry. Ratio is 1:1, again.
1 mol of acid can produce 1 mol of water
Therefore, 0.090 moles of acid must produce 0.090 moles of H₂O
We convert the moles to mass, to define the theoretical yield
0.090 mol . 18g / 1 mol = 1.63 g