Question

indicati afirmatiile corecte privind reactiile de mai jos . 80g NaOH se consuma total in reactia cu : a)2 moli de HNO3
b)1 mol de H2SO4
c)1 mol de H2S
d)1 mol de H3PO4
e)1 mol de HCl
heeeeeeeeeeelp plssssss :-s

Answer 1

Masa moleculara a NaOH este 40g/mol, deci ai 2 moli de NaOH
Acestia se consuma integral in reactiile de la a), b), c)

[tex]NaOH+HNO_{3} = NaNO_{3} + H_{2}O \\ 2NaOH+H_{2}SO_{4} = Na_{2}SO_{4} + 2H_{2}O \\ 2NaOH+H_{2}S = Na_{2}S + 2H_{2}O \\ 3NaOH+H_{3}PO_{4} = Na_{3}PO_{4} + 3H_{2}O \\ NaOH+HCl = NaCl + H_{2}O \\ [/tex]