Suppose that the stomach contains 0.200l of 0.05m hcl. what mass of the antacid mg (oh) 2 is required to completely neutralize all of the hcl

Question

Dominique Kelly

Chemistry

20 November, 04:30

Suppose that the stomach contains 0.200l of 0.05m hcl. what mass of the antacid mg (oh) 2 is required to completely neutralize all of the hcl

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Answers (1)

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Yazmin Bowen · Answer 1

1) Recognize the balanced equation is:

2HCl + Mg (OH) 2 = MgCl2 + 2HOH

2) Find moles of HCl

(0.05moles/1L) (.200L) =.01 moles HCl

3) Use conversions to find moles of Mg (OH) 2.

(.01mol HCl * 1mol Mg (OH) 2) / 2mol HCl =.005 mol Mg (OH) 2

4).005 * 58.32 (the molar mass) =.2916g Correct sig figs = 0.29g Mg (OH) 2