28.6g
Explanation:
Given parameters:
Mass of sulfuric acid = 25g
Unknown:
Mass of lithium sulfate = ?
Solution:
Since the sulfuric acid is in short supply, we can conclude that it is the limiting reactant.
This reactant will determine the extent of the chemical reaction.
To solve this problem solve from the known to the unknown.
Make sure the equation given is balance.
find the number of mole of the given specie and use it to obtain that of the unknown
find the mass of the unknown
Equation of reaction;
H₂SO₄ + 2LiOH → Li₂SO₄ + 2H₂O
number of mole sulfuric acid=
Molar mass of H₂SO₄ = 2(1) + 32 + 4(16) = 98g/mol
Number of moles = = 0.26moles
1 mole of sulfuric acid produced 1 mole of the sulfate
0.26moles of the sulfuric acid will yield 0.26moles of the sulfate
Mass of the sulfate = number of moles x molar mass
Molar mass of Li₂SO₄ = 2(7) + 32 + 4(16) = 110g/mol
mass of sulfate = 110 x 0.26 = 28.6g
learn more:
Number of moles brainly.com/question/1841136
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