What volume pf 3 molar hno3 is needed to oxidise 8g ferrous to ferric,hno3 gets converted to NO

Q. What volume of $3$ M $HN{O}_3$ is needed to oxidize $8$ g of $F{e}^{2+}$ to $F{e}^{3+}$? $HN{O}_3$ gets converted to $NO$.

Q. What volume of $6MHN{O}_3$ is needed to oxidize $8g$ of $F{e}^{3+}$ if $HN{O}_3$ is converting to NO?

Q. The volume (ml) of 3M $HN{O}_3$ required to oxidised 8 g $F{e}^{2+}$ is:
$(HN{O}_3+F{e}^{2+}\to F{e}^{3+}+NO+H_{2}O)$:

Q. What volume of $6MHN{O}_3$ is needed to oxidize $8g$ of $F{e}^{3+}$ if $HN{O}_3$ is converting to NO?

Q. What volume of $0.5MHN{O}_3$ is required to completely dissolve $13.0g$ of zinc? (Assume that $HN{O}_3$ is converted into $N{O}_2$ and molar mass of $Zn$ is 65/g mole)