How many mL of 3.000 M Mg(OH)2 solution are needed to react with 2.000 L of 3.000 M H3PO4 ?   2 H3PO4   +   3 Mg(OH)2    →   6 H2O   +   Mg3(PO4)2 This is a titration problem, and we are given enough information to calculate the moles of the acid.                    _____________mol (2.000 L)(––––––––––––––––––––––––) =  _________mol H3PO4                  _______________ L

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How many mL of 3.000 M Mg(OH)2 solution are needed to react with 2.000 L of 3.000 M H3PO4 ?  

2 H3PO4   +   3 Mg(OH)2    →   6 H2O   +   Mg3(PO4)2

This is a titration problem, and we are given enough information to calculate the moles of the acid.

                   _____________mol

(2.000 L)(––––––––––––––––––––––––) =  _________mol H3PO4

                 _______________ L

 

                                                             _______________mol Mg(OH)2                                             

(  ______________ mol H3PO4)(–––––––––––––––––––––––––––––––––––) =  _____________ mol Mg(OH)2

                                                      ___________________ mol H3PO4 

                                           

                                                               ___________ L                                                        

( __________ mol Mg(OH)2)(––––––––––––––––––––––––––––) = ___________ L NaOH

                                                               ____________ mol Mg(OH)2 

                                   

                                                            __________ mL

 _____________ L NaOH (–––––––––––––––––––––––––––) =  _____________ NaOH

                                                           _____________ L

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