\(m_{Ca}=\%Ca.M_X=29,41\%.136=40\left(g\right)\\ m_S=\%S.M_x=23,53\%.136=32\left(g\right)\\ m_O=m_x-m_S-m_{Ca}=136-32-40=64\left(g\right)\)
\(\Rightarrow n_{Ca}=\dfrac{m}{M}=\dfrac{40}{40}=1\left(mol\right)\\ n_S=\dfrac{m}{M}=\dfrac{32}{32}=1\left(mol\right)\\ n_O=\dfrac{m}{M}=\dfrac{64}{16}=4\left(mol\right)\\ CTHH:CáSO_4\)