Magnesium hydroxide, the active ingredient in milk of magnesia, neutralizes stom

Question

Magnesium hydroxide, the active ingredient in milk of magnesia, neutralizes stomach acid, primarily HCl, according to the reaction:
Mg(OH)2(aq)+2HCl(aq)?2H2O(l)+MgCl2(aq)What mass of HCl, in grams, is neutralized by a dose of milk of magnesia containing 3.49g  Mg(OH)2?

Mg(OH)2(aq)+2HCl(aq)?2H2O(l)+MgCl2(aq)

What mass of HCl, in grams, is neutralized by a dose of milk of magnesia containing 3.49g  Mg(OH)2?Magnesium hydroxide, the active ingredient in milk of magnesia, neutralizes stomach acid, primarily HCl, according to the reaction:
Mg(OH)2(aq)+2HCl(aq)?2H2O

Explanation / Answer

Mg(OH)2(aq)+2HCl(aq)?2H2O(l)+MgCl2(aq)

for 1 mole of Mg(OH)2 requires 2 moles of HCl

   3.4/58.31 = 0.058 mole of Mg(OH)2 requires = 0.116 moles of HCl

=0.116*36.5 = 4.25 gm of HCl

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