The value of K sp for Mg 3 (AsO 4 ) 2 is 2.1 10 -20
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The value of Ksp for Mg3(AsO4)2 is 2.1 × 10-20. The AsO43- ion is derived from the weak acid H3AsO4 (pKa1, = 2.22; PKa2 = 6.98; pKa3 = 11.50). When asked to calculate the molar solubility of Mg3(AsO4)2 in water, a student used the Ksp expression and assumed that [Mg2+ = 1.5 [AsO43-]. Why was this a mistake?
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The solubility by which we usually mean the molar solubili...View the full answer
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Dudhat Vaidehi
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Related Book For 
Chemistry The Central Science
ISBN: 978-0321696724
12th edition
Authors: Theodore Brown, Eugene LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward
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