\omega_H = 100\% * \frac{2}{98} = 2\% \\ \omega_S = 100\% * \frac{32}{98} = 32.7 \% \\ \omega_O = 100\% * \frac{64}{98} = 65.3\%" alt="H_2SiO_3 \\ M_{H_2SiO_3} = 78 \\ \omega_{Si} = 100\% * \frac{28}{78} = 36\% \\ \omega_O = 100\% * \frac{48}{78} = 61.5\% \\ \omega_H = 100\% * \frac{2}{78} = 3\%" />\omega_H = 100\% * \frac{2}{98} = 2\% \\ \omega_S = 100\% * \frac{32}{98} = 32.7 \% \\ \omega_O = 100\% * \frac{64}{98} = 65.3\%" />