Stomach acid, a dilute solution of HCl can be neutralised by reaction with Aluminium hydroxideAl(OH)_(3) + 3HCl(aq)to + AICI_(3) + 3H_(2)O How many millilitres of 0.1 M Al(OH)_(3) solution are needed to neutralise 21 mL of 0.1 M HCI?

Stomach acid, a dilute solution of HCl can be neutralised by reaction

1.	Stomach acid, a dilute solution of HCl can be neutralised by reaction with Aluminium hydroxideAl(OH)_(3) + 3HCl(aq)to + AICI_(3) + 3H_(2)O How many millilitres of 0.1 M Al(OH)_(3) solution are needed to neutralise 21 mL of 0.1 M HCI?
Answer» 14 mL 7 ml 21 mL none of these Solution :` Mxx V = M_(2) XXv_(2)` `:’0.1M AL(OH)_(3) gives 3 XX 0.1 = 0.3 M OH^(-) ions` `0.3 xx V_(1) = 0.1xx 21` `V_(1)=(0.1xx21)/(0.3)=7ml`