\(PTK_{NaNO_3}=23+14+3.16=85\left(đvC\right)\)
\(\%m_{Na}=\dfrac{23}{85}.100=27,05\%\)
\(\%m_N=\dfrac{14}{85}.100=16,47\%\)
\(\%m_O=\dfrac{3.16}{85}=56,47\%\)
\(PTK_{K_2CO_3}=2.39+12+3.16=138\left(đvC\right)\)
\(\%m_K=\dfrac{78}{138}.100=56,52\%\)
\(\%m_C=\dfrac{12}{138}.100=8,69\%\)
\(\%m_O=\dfrac{3.16}{138}.100=34,78\%\)
các ý còn lại làm tương tự