The chemical reaction between F2 and H3PO4 $phosphoricacid$ is as follows:

2F2 + 6H3PO4 → 2HF + 3H2PO4 + 3H2O

The reaction between Na $sodium$ and H3PO4 is as follows:

3Na + H3PO4 --> Na3PO4 + 3H2

This reaction will produce sodium phosphate $Na3PO4$ and hydrogen gas $H2$.