a) \(n_C=\dfrac{18}{12}=1,5\left(mol\right)\)
b) \(m_{NaCl}=0,25.58,5=14,625\left(g\right)\)
c) \(n_{N_2}=\dfrac{14}{28}=0,5\left(mol\right)=>V_{N_2}=0,5.22,4=11,2\left(l\right)\)
d) Tổng số mol = 1,5 + 0,25 + 0,5 = 2,25
a) \(n_C=\dfrac{m}{M}=\dfrac{18}{12}=1,5\left(mol\right)\)
b) \(M_{NaCl}=23+35,5=58,5\left(\dfrac{g}{mol}\right)\)
\(m_{NaCl}=n.M=0,25.58,5=14,625\left(g\right)\)
c) \(n_{N_2}=\dfrac{m}{M}=\dfrac{14}{28}=0,5\left(mol\right)\)
\(V_{N_2\left(đktc\right)}=n.22,4=0,5.22,4=11,2\left(l\right)\)
d) Tổng số mol = 1,5 + 0,25 + 0,5 = 2,25 (mol)