HCl + Na2SO4 à NaCl + H2SO4 If you start with 20 grams of hydrochloric acid, how many grams of sulfuric acid will be produced?

Question

NEED HELP PLS! Not understanding this.

Answer 1

 I assume you mean HCl + Na₂SO₄ --> NaCl + H₂SO₄ ???

 

First balance the reaction:

2HCl + Na₂SO₄ --> 2NaCl + H₂SO₄

 

Next, convert 20 grams of HCl to moles: 20 grams/molar mass of HCl = 20 grams/36.461 gram/mole = 0.549 mole HCl

 

Apply the mole ratio of this reaction: 2 mole of HCl result in 1 mole of H₂SO₄

So 0.549 mole of HCl leads to 0.275 mole H₂SO₄

 

Finally: convert moles H₂SO₄ to grams: multiplying with molar mass of H₂SO₄. :98.079 gram/mol (2*H+1S+4*O)

Answer: 0.275 mole * 98.079 gram/mole = 26.97 = 27 grams H₂SO₄

 

hopes this helps, good luck