CTHH: 2M+H2SO4--->M2SO4+H2
n\(_{H2SO4}=0,6.0,05=0,03\left(mol\right)\)
Theo pthh
n\(_M=2n_{H2SO4}=0,06\left(mol\right)\)
M\(_M=\frac{2,34}{0,06}=39\)
=> M là Kali..kí hiệu K
Ta có:
\(n_{H2SO4}=0,03\left(mol\right)\)
\(2R+H2SO4\rightarrow R2SO4+H2\)
\(\Rightarrow nR==0,06\left(mol\right)\Rightarrow MR=39\)
\(\Rightarrow R:Kali\left(K\right)\)