3NaOH+H3PO4=Na3PO4+3H2O
m H3PO4=200*0.098=19.6г
n H3PO4=19.6/98=0.2 моль
n Na3PO4=0.2 моль
m Na3PO4=0.2*119=23.8 г
3NaOH+H3PO4=Na3PO4+3H2O
m H3PO4=200*0.098=19.6г
n H3PO4=19.6/98=0.2 моль
n Na3PO4=0.2 моль
m Na3PO4=0.2*119=23.8 г