Ответ:
M(co2) = 12 + 32 = 44
m = n * M = 2 * 44 = 88 г
V = n * Vm = 2 * 22.4 = 44.8 л
N = n * Na = 2 * 6.02 * 10^23 = 12.04 * 10^23
M(nh3) = 14 + 3 = 17
n = N/ Na = 18.06 * 10^23 / 6.02 * 10^23 = 3 моль
m= n * M = 3 * 17 = 51 г
V = n * Vm = 3 * 22.4 = 67.2 л
M(h2s) = 2+32=34
n=m/M=8.5/34=0.25 моль
V= n * Vm = 0.25 * 22.4=5.6л
N =n*Na=0.25*6.02*10^23=1.505*10^23
M(CH4) =12+4=16
n=V/Vm=33.6/22.4=1.5 моль
m=n*M=1.5*16=24 г
N=n*Na=1.5*6.02*10^23=9.03*10^23
M(hno3)=1+14+48=63
m=n*M=0.5*63=31.5 г
V= n*Vm=0.5*22.4=11.2 л
N =n*Na=0.5*6.02=3.01*10^23
M(CaCO3)= 40+12+48=100
n=N/Na=6.02/6.02 = 1 моль
m = n*M=1*100=100 г
V=n*Vm=1*22.4=22.4 л
А)<span>CaO + 2 HNO3 = Ca(NO3)2 + H2O
</span>2 Fe2O3 + 3 FeSO4 = Fe(SO4)3 + 6 FeO
<span>MgO + 2 HCl = H2O + MgCl<span>2
</span></span><span>SO2 + 2 KOH = H2O + K2SO<span>3
</span></span><span>CO2 + Ba(OH)2 = BaCO3 + H2O
</span><span>SiO2 + 2 NaOH = H2O + Na2SiO<span>3
</span></span><span>SO3 + 2 NaOH = H2O + Na2SO<span>4
</span></span>CaO+SiO2=CaSiO3
<span>Na2O + SiO2 = Na2SiO<span>3
</span></span><span>CaO + CO2 = CaCO<span>3</span></span>
W(Al)=Ar(Al)*индекс/Mr(Al2O3)=27*2/102=52.94\%w(O)=48/102=47.06\%
<span>а) Ca -->CaO --> Ca(OH)2 --> CaCl2 --> AgCl</span>