Magnesium Hydroxide,Mg(OH)₂,as "Milk of Magnesia" Can Be Used to Neutralize

question 18

Multiple Choice

Magnesium hydroxide,Mg(OH) ₂,as "Milk of Magnesia" can be used to neutralize excess stomach acid,represented by HCl(aq) according to the chemical equation below. Mg(OH) ₂(s) + 2HCl(aq) → MgCl₂(aq) + 2H₂O(l)
When 5.00 g of HCl are combined with an excess of Mg(OH) ₂,what mass of MgCl₂ can be produced? [Molar masses: H,1.01 g/mol; O,16.00 g/mol; Mg,24.31 g/mol; Cl,35.45 g/mol]

• A)13.1 g
• B)6.53 g
• C)0.957 g
• D)2.50 g
• E)70.5 g

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