0.5molH2SO4质量是
网友回答
m(H2SO4)=n(H2SO4)*M(H2SO4)=0.5mol*98mol/L=49g
N(H2SO4)=n(H2SO4)*NA=0.5mol*6.02*10^23=3.01*10^23
n(O2)=0.5mol*4=2mol
H2SO4+2NaOH=Na2SO4+H2O
1mol 2mol
0.5mol x
x=1mol
n(H)=0.5mol*2=1mol
n(H3PO4)=1mol/3=0.33mol
由题意得,n(HCL)=1mol
m(HCL)=n(Hcl)*M(Hcl)=1mol*36.5g/mol=36.5g
======以下答案可供参考======
供参考答案1:
49g3.01*10^23个
2mol1mol