Răspuns:
1 mol HNO₃
Explicație:
[tex]\rm c_M=\dfrac{n}{V_s}\implies n=c_M\times V_s[/tex]
[tex]\rm 1000cm^3=1dm^3=1L[/tex]
[tex]\rm V_s=500cm^3=\dfrac{50\!\!\!/0\!\!\!/}{100\!\!\!/0\!\!\!/}dm^3=0,5dm^3=\bf0,5L[/tex]
[tex]\rm c_M=2M=\bf2\dfrac{mol}{L}[/tex]
[tex]\rm n_{HNO_3}=2\dfrac{mol}{L\!\!\!/}\times0,5L\!\!\!/=\bf1\:mol[/tex]
