In the reaction below, 150.0 g of water is collected. how many liters of sulfuric acid were used if the concentration is 0.650 m? h2so4 + na2co3 → na2so4 + co2 + h2o 1. 17.0 l 2. 0.670 l 3. 4.23 l 4. 12.8 l 5. 4130 l 6. 10.6 l

Question

Marcelo Castaneda

Chemistry

1 April, 19:50

In the reaction below, 150.0 g of water is collected. how many liters of sulfuric acid were used if the concentration is 0.650 m? h2so4 + na2co3 → na2so4 + co2 + h2o 1. 17.0 l 2. 0.670 l 3. 4.23 l 4. 12.8 l 5. 4130 l 6. 10.6 l

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Answers (1)

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Israel Fowler · Answer 1

Answer is: 12,8 l of H₂SO₄.

Chemical reaction: H₂SO₄ + Na₂CO₃ → Na₂SO₄ + CO₂ + H₂O.

m (H₂O) = 150 g.

c (H₂SO₄) = 0,650 mol/dm³.

V (H₂SO₄) = ?

n (H₂O) = m (H₂O) : M (H₂O)

n (H₂O) = 150 g : 18 g/mol = 8,33 mol.

from reaction: n (H₂SO₄) : n (H₂O) = 1 : 1.

n (H₂SO₄) = 8,33 mol.

c = n : V, V = n : c.

V (H₂SO₄) = 8,33 mol : 0,650 mol/dm³ = 12,81 dm³.