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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04-01-2018
Chemistry

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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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Dejanras Dejanras · Answer 1 · 2018-01-13T09:49:46+01:00

Dejanras Dejanras

13-01-2018

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.

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