According to the balanced chemical equation: 4 HPO₃ + 12 C → 2 H₂ + 12 CO + P₄ 4 moles of HPO₃ ---gives---> 12 moles of CO 2.73 moles of HPO₃ ---gives---> ? moles of CO so number of moles of CO = [tex] \frac{(2.73 * 12)}{4} [/tex] = 8.19 moles of CO Number of molecules of CO = number of moles * Avogadro's number = 8.19 * (6.022 * 10²³) = 4.93 * 10²⁴ molecules
