The value of K sp for Mg 3 (AsO 4 ) 2 is 2.1 x 10 -20

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The value of Ksp for Mg3(AsO4)2 is 2.1 x 10-20. The AsO43- ion is derived from the weak acid H3AsO4 (pKa1 = 2.22; pKa2 = 6.98; pKa3 = 11.50). 

(a) Calculate the molar solubility of Mg3(AsO4)2 in water. 

(b) Calculate the pH of a saturated solution of Mg3(AsO4)2 in water.

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Chemistry The Central Science

ISBN: 978-0134414232

14th Edition

Authors: Theodore Brown, H. LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward, Matthew Stoltzfus

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