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posted by  morph147 on 4/24/2008 9:39:15 PM  |  status: Live  

acid base question will rate lifesaver

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gelusil is an example of an antacid that contains magnesium hydroxide, Mg(OH)2. Consider the reaction between this basic material and HCl. How many moles of HCl do you need to neutralize a) 0.20  b) 0.425, and c) 2.3 moles of Mg(OH)2?
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posted by Rubisco on 4/24/2008 9:48:09 PM  |  status: Live
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morph147's comment:
"could have used more details in this but i promised the livesaver so "
Response Details:
a) .40 mols HCl b) 0.85 mols HCl c) 4.6 mols HCl
Magnesium hydroxide has 2 mols of  OHs per 1 mol of Mg(OH)2.
Therefore you need twice as many protons to neutralize the same number of hydroxide ions.
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