Answer:
The answer to your question is 2.14 moles of Cl₂
Explanation:
Data
mass of NaCl = 250 g
moles of Cl₂ = ?
Process
1.- Write the balanced chemical reaction
2NaCl + 2H₂O ⇒ 2NaOH + Cl₂ + H₂
2.- Calculate the molar mass of NaCl
NaCl = 23 + 35.45 = 58.45 g
3.- Convert the mass of NaCl to moles
58.45 g of NaCl ---------------- 1 mol
250 g of NaCl ------------------- x
x = (250 x 1) / 58.45
x = 4.28 moles
4.- Calculate the moles of Cl₂
2 moles of NaCl ----------------- 1 mol of Cl₂
4.28 moles of NaCl ------------- x
x = (4.28 x 1) / 2
x = 2.14 moles of Cl₂
