Explanation:
The question gives us the following balanced equation:
H2SO4 + 2NaOH → Na2SO4 + 2H2O
The equation tells us that 1 mole of H2SO4 react with 2 mole of NaOH producing 1 mole of Na2SO4 and 2 moles of H2O.
It is important to know the ratio between sodium sulfate and water: 1:2.
Also, the question tells us the quantity in grams of Na2SO4. We need to transform it to moles, using the following formula:
n = m/MM
MM of Na2SO4 = 142.04 g/mol
so:
n = 2/142.04
n = 0.0014 moles of Na2SO4
The ratio between Na2SO4 and H2O is:
1 mole of Na2SO4 ---- 2 moles of H2O
0.0014 moles of Na2SO4 ---- y
y = 0.0028 moles of H2O
Answer: It is produced 0.0028 moles of H2O.
