Question

15. Upon balancing the equation below, how many moles of sulfuric acid are needed to react completely with 6.4 moles of lithium hydroxide?

LIOH + H2SO4 -> Li2SO4 + H20 (2 points)
12.8 mol H2SO4
6.4 mol H2SO4
O 3.2 mol H2SO4
O 2.1 mol H2SO4

Answer 1

Moles of Sulfuric acid- H₂SO₄ needed to react completely : 3.2 moles

Further explanation

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction(balanced)

2LiOH + H₂SO₄ → Li₂SO₄ + 2H₂O

From the reaction equation above, the reaction coefficient shows the mole ratio of reagents and products

moles of Lithium hydroxide-LiOH = 6.4 moles

mol ratio of LiOH : H₂SO₄ = 2 : 1, so mol H₂SO₄ :

`\tt moles~H_2SO_4=(1)/(2)* 6.4=3.2`