Odpowiedź :
[tex]C_p=\frac{m_s}{m_r}\cdot100\%\\\\V_r=2 \ dm^3=2000 \ cm^3\\\\d_r=1,16 \ \frac{g}{cm^3}\\\\m_r=2000 \ cm^3\cdot1,16 \ \frac{g}{cm^3}=2320 \ g\\\\m_s=300 \ g\\\\C_p=\frac{300g}{2320g}\cdot100\%\approx\boxed{13\%}[/tex]
[tex]C_p=\frac{m_s}{m_r}\cdot100\%\\\\V_r=2 \ dm^3=2000 \ cm^3\\\\d_r=1,16 \ \frac{g}{cm^3}\\\\m_r=2000 \ cm^3\cdot1,16 \ \frac{g}{cm^3}=2320 \ g\\\\m_s=300 \ g\\\\C_p=\frac{300g}{2320g}\cdot100\%\approx\boxed{13\%}[/tex]