Phosphoric acid \[\left( {{H}_{3}}P{{O}_{4}} \right)\] is tribasic acid and one of its salts is sodium dihydrogen phosphate \[\left( Na{{H}_{2}}P{{O}_{4}} \right)\]. What volume of 1 M \[NaOH\] solution should be added to 12 g of sodium dihydrogen phosphate (mol. wt. 120) to exactly convert it into trisodium phosphate \[N{{a}_{3}}P{{O}_{4}}\] [Kurukshetra CET 1998]

Phosphoric acid \[\left( {{H}_{3}}P{{O}_{4}} \right)\] is tribasic aci

1.	Phosphoric acid \[\left( {{H}_{3}}P{{O}_{4}} \right)\] is tribasic acid and one of its salts is sodium dihydrogen phosphate \[\left( Na{{H}_{2}}P{{O}_{4}} \right)\]. What volume of 1 M \[NaOH\] solution should be added to 12 g of sodium dihydrogen phosphate (mol. wt. 120) to exactly convert it into trisodium phosphate \[N{{a}_{3}}P{{O}_{4}}\] [Kurukshetra CET 1998]
A.	80 ml
B.	100 ml
C.	200 ml
D.	300 ml
Answer» D. 300 ml

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