helpmedoschool helpmedoschool
  • 11-12-2020
  • Chemistry
contestada


25.00 grams of sodium chloride reacts with an excess
hydrochloric acid and sodium sulfate. What weight of HCl is produced?

Respuesta :

ardni313
ardni313 ardni313
  • 12-12-2020

Mass of HCl produced :15.59 g

Further explanation

Reaction

2NaCl + H₂SO₄ → 2HCl + Na₂SO₄

Excess = H₂SO₄

Limiting = NaCl

mass NaCl = 25 g

mol NaCl(MW=58.5 g/mol) :

[tex]\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{25}{58.5}=0.427[/tex]

From the equation, mol ratio NaCl : HCl = 2 : 2, so mol HCl = mol NaCl =0.427

Mass of HCl(MW=36.5 g/mol) :

[tex]\tt mass=mol\times MW\\\\mass=0.427\times 36.5\\\\mass=15.59~g[/tex]

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