14. In the following reaction, phosphoric acid reacts with magnesium hydroxide: 2 Н,РО, + 3 Mg(он) — Mg:(РO,), + 6 H.0 The following molar masses have been calculated: Mm(H3PO4) = 98,0 g/mal Mm(Mg(OH)2) = 58,3 g/mol Mm (Mg:(PO.)2) = 262,9 g/mal M(H:0) = 18,0 g/mal In the above reaction, 20,0 g of H;PO4 is reacted with 20,0 g of Mg(OH)2. a. Which is the limiting reactant? b. Complete the amounts table for the reaction: 2 H;PO4 + 3 Mg(OH)2 + Mg:(PO4)2 6 Н.0 () Initial amount (mol) Change in amount (mol) After complete reaction (mol) C. What mass of the excess reactant remains? d. What is the theoretical yield of Mg3(PO4)2? 2 e. What type of reaction is this?

14. In the following reaction, phosphoric acid reacts with magnesium hydroxide: 2 Н,РО, + 3 Mg(он) — Mg:(РO,), + 6 H.0 The following molar masses have been calculated: Mm(H3PO4) = 98,0 g/mal Mm(Mg(OH)2) = 58,3 g/mol Mm (Mg:(PO.)2) = 262,9 g/mal M(H:0) = 18,0 g/mal In the above reaction, 20,0 g of H;PO4 is reacted with 20,0 g of Mg(OH)2. a. Which is the limiting reactant? b. Complete the amounts table for the reaction: 2 H;PO4 + 3 Mg(OH)2 + Mg:(PO4)2 6 Н.0 () Initial amount (mol) Change in amount (mol) After complete reaction (mol) C. What mass of the excess reactant remains? d. What is the theoretical yield of Mg3(PO4)2? 2 e. What type of reaction is this?

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter4: Stoichiometry

Section: Chapter Questions

Problem 4.87PAE

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