x 0,6
H3PO4(0,2)+3KOH(0,6)-->K3PO4+3H2O
1. 3
x=0,6×1:3=0,2
m(H3PO4)=0,2×107=21,4г
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x 0,6
H3PO4(0,2)+3KOH(0,6)-->K3PO4+3H2O
1. 3
x=0,6×1:3=0,2
m(H3PO4)=0,2×107=21,4г