Answers

2013-12-26T09:49:09+01:00
mNaOH=40u
mH3PO4=98u
3NaOH + H3PO4 ---> Na3PO4 + 3H2O
120g NaOH ------ 98g H3PO4
20g NaOH ------- xg H3PO4
120x = 20*98
120x = 1960
x = 16,33g H3PO4

0