Magnesium hydroxide, the active ingredient in milk of magnesia, neutralizes stomach acid, primarily hcl, according to the reaction: mg (oh) 2 (aq) + 2 hcl (aq) → h2o (l) + mgcl2 (aq) how much hcl in grams can be neutralized by 5.50 g of mg (oh) 2? express your answer in grams to two decimal places.

Question

Chemistry

Ziggy

3 January, 06:15

Magnesium hydroxide, the active ingredient in milk of magnesia, neutralizes stomach acid, primarily hcl, according to the reaction: mg (oh) 2 (aq) + 2 hcl (aq) → h2o (l) + mgcl2 (aq) how much hcl in grams can be neutralized by 5.50 g of mg (oh) 2? express your answer in grams to two decimal places.

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Malcolm Buchanan · Answer 1

For every 1 molecule of Magnesium hydroxide or Mg (OH) 2 there will be 2 molecules of HCl neutralized.

If molar mass of magnesium hydroxide is 58.3197g/mol, the amount of mol in 5.50 g magnesium hydroxide should be: 5.50g / (58.3197g/mol) = 0.0943mol.

Then, the amount of HCl molecule neutralized would be: 2 * 0.0943mol = 0.18861 mol

If molar mass of HCl is 36.46094 g/mol, the mass of the molecule would be: 0.18861 mol * 36.46094g/mol = 6.88grams