ta có PTHH: 4P+5O2--->2P2O5
nO2=3,36:22,4=0,15mol
mO2=0,15.32=4,8g
áp dụng ĐLBTKL
mP+mO2=mP2O5
mP=14,29-4,8=9,49g
nO2=3,36/22,4=0,15mol
=>mO2=0,15.32=4,8g
Theo ĐLBTKLG ta có
mP+mO2=mP2O5
=>mP=mP2O5-mO2=14,29-4,8=9,49g
Ta có PTHH:4P+5O2->2P2O5
nO2=\(\dfrac{3,36}{22,4}\)=0,15(mol)
=>mO2=0,15.32=4,8(g)
Aps dụng ĐLBTKL ta có:
mP+mO2=mP2O5
mP+4,8=14,29
mP=14,29-4,8=9,49(g)
5O2 + 4P \(\underrightarrow{t^o}\)P2O5
n\(_{O_2}\)=\(\dfrac{3,36}{22,4}\)=0,15(mol)
⇒m\(_{O_2}\)=0,15.32=4,8(g)
Áp dụng ĐLBTKL ta có:
m\(_{O_2}\)+ mP=m\(_{P_2O_5}\)
⇒mP=m\(_{P_2O_5}\)-m\(_{O_2}\)=14,29-4,8=9,49(g)
PTHH:4P+5O2----->2P2O5
\(n_{O_2}=\dfrac{V_{O_2}}{22,4}=\dfrac{3,36}{22,4}=0,15\left(mol\right)\)
\(m_{O_2}=n_{O_2}.M_{O_2}=0,15.32=4,8\left(g\right)\)
Áp dụng ĐLBTKL:\(m_P+m_{O_2}=m_{P_2O_5}=>m_P=m_{P_2O_5}-m_{O_2}=14,29-4,8=9,49\left(g\right)\)