Question

(2HCl + K2SO4 → H2SO2 + 2 KCH

How many grams/sulfuric acid will be produced if 100g
of hydrochloric acid is used?

Answer 1

Mass = 134.4 g

Step-by-step explanation:

Given data:

Mass of hydrochloric acid = 100 g

Mass of sulfuric acid produced = ?

Solution:

Chemical equation:

2HCl + K₂SO₄ → H₂SO₄ + 2KCl

Number of moles of HCl:

Number of moles = mass / molar mass

Number of moles = 100 g/ 36.5 g/mol

Number of moles = 2.74 mol

Now we will compare the moles of HCl with H₂SO₄

HCl : H₂SO₄

2 : 1

2.74 : 1/2×2.74 = 1.37 mol

Mass of H₂SO₄:

Mass = number of moles × molar mass

Mass = 1.37 mol × 98.1 g/mol

Mass = 134.4 g