Câu a kết quả là SO3
b)\(SO3+H2O-->H2SO4\)
\(n_{CO2}=\frac{8}{80}=0,1\left(mol\right)\)
\(n_{H2SO4}=n_{SO3}=0,1\left(mol\right)\)
\(m_{H2SO4}=0,1.98=9,8\left(g\right)\)
m dd =\(152+8=160\left(g\right)\)
\(C\%_{H2SO4}=\frac{9,8}{160}.100\%=6,125\%\)
Gọi CTTQ: XO3
Ta có: 40\60=MX\48
=> MX = 40.4860=32
=> X là Lưu huỳnh (S)
CTHH: SO3
b)SO3+H2O−−>H2SO4
0,1---------------------0,1 mol
nCO2=8\80=0,1(mol)
mH2SO4=0,1.98=9,8(g)
m dd =152+8=160(g)
C%H2SO4=9,8\160.100%=6,125%
a) Gọi CTTQ: XO3
Ta có: 40\60=MX\48
=> MX = 40.4860=32
=> X là Lưu huỳnh (S)
CTHH: SO3
b) SO3+H2O − −> H2SO4
nCO2=8/80=0,1(mol)
nH2SO4=nSO3=0,1(mol)
mH2SO4=0,1.98=9,8(g)
mdd =152+8=160(g)
C%H2SO4=9,8/160.100%=6,125%