<span>CH3-NH-C2H5</span>
<span><span>CH2-CH2-CH2-CH-COOH</span></span>
I
CH3
<span>
2Al+3O</span>₂<span> =2Al</span>₂<span>O</span>₃<span> Al</span>₂<span>O</span>₃<span> +6HCl =-2AlCl</span>₃<span> + 3H</span>₂<span>O
AlCl</span>₃<span> + 3NaOH = Al(OH)</span>₃<span> +3NaCl
Al(OH)</span>₃<span> + 3HNO</span>₃<span> =Al(NO</span>₃<span>)</span>₃<span> + 3H</span>₂<span>O
</span><span>Al(NO</span>₃<span>)</span>₃<span> + Mg =Al + Mg(NO</span>₃<span>)</span>₂<span>
4Al + 3O</span>₂<span> = 2Al</span>₂<span>O</span>₃<span>
</span>Al₂O₃ + 2Si = 2SiO₂ + Al₂<span>O</span>
M(NaOH)=n*M=4*40=160; W=160/160+640=160/800=0,2=20%
N2+o2=2no
2No+o2=2no2
No2+h20=hno3
Cuso4+hno3=cu(no3)2+h2so4
2Al+3cu(no3)2=2al(no3)2+3cu
W(N)=(Ar(N)*n)/M(Ca(NO3)2)*100%=14*2/(40+14*2+16*6)*100%=17.073%