Question

If you managed to swallow 1.0 mole of aluminum hydroxide, how many moles of HCI in your stomach should react so as to completely dissolve the solid? Write the net ionic equation for aluminum hydroxide in water. Use Le Chatelier's principle and a second balanced equation to support why 1.0 mole of aluminum hydroxide dissolves in acid.  

Answer 1

Al(OH)3   + 3 HCl ----------------------> AlCl3 + 3 H2O

1mole          3 mole

for 1 mole aluminum hydroxide 3 moles HCl needed

answer 1)   : 3.0 moles of HCl needed

net ionic equation :

Al(OH)3 (s)   +   3 H+ (aq) ---------------------> Al³⁺ (aq) + 3H2O (l)

Le Chatelier's principle :    accoding to this prinple on decrease in the concentration of any one the product the reaction will shift towards product side to maintain equilibrium

here . OH- from Al(OH)3 will react with H+ so product OH- amount will be decreased and the reaction will shift towards product side that means solubility will increases