Al(OH)3 + NaOH = ? уравнение реакции Какие продукты образуются в результате взаимодействия Al(OH)3 + NaOH = ? Надо записать молекулярное и ионное уравнение реакции, а также решить задачу. Вот условие: какая масса соли образуется при сплавлении 80 г гидроксида алюминия с 90 г гидроксида натрия? Какое из веществ будет в избытке?
To find the amount of salt formed, we first need to determine the limiting reagent.
Calculate the moles of each reactant: Moles of Al(OH)3 = 80g / 78g/mol = 1.03 mol Moles of NaOH = 90g / 40g/mol = 2.25 mol
The stoichiometry shows that 1 mole of Al(OH)3 reacts with 3 moles of NaOH, meaning 1.03 moles of Al(OH)3 would require 3.09 moles of NaOH. Since NaOH is in excess, all the Al(OH)3 will be used up.
Calculate the mass of salt formed: Molar mass of NaAl(OH)4 = 101g/mol Mass of NaAl(OH)4 = 1.03 mol * 101g/mol = 104.03g
Therefore, 104.03g of salt will be formed when 80g of Al(OH)3 react with 90g of NaOH. NaOH will be in excess.
Molecular equation: Al(OH)3 + 3NaOH = NaAl(OH)4
Ionic equation: Al(OH)3 + 3Na+ + 3OH- = Na+ + Al(OH)4- + 3OH-
To find the amount of salt formed, we first need to determine the limiting reagent.
Calculate the moles of each reactant:
Moles of Al(OH)3 = 80g / 78g/mol = 1.03 mol
Moles of NaOH = 90g / 40g/mol = 2.25 mol
The stoichiometry shows that 1 mole of Al(OH)3 reacts with 3 moles of NaOH, meaning 1.03 moles of Al(OH)3 would require 3.09 moles of NaOH. Since NaOH is in excess, all the Al(OH)3 will be used up.
Calculate the mass of salt formed:
Molar mass of NaAl(OH)4 = 101g/mol
Mass of NaAl(OH)4 = 1.03 mol * 101g/mol = 104.03g
Therefore, 104.03g of salt will be formed when 80g of Al(OH)3 react with 90g of NaOH. NaOH will be in excess.