Final Answer:
a) CH₃OH: The number of moles of CH₃OH can be determined by dividing the given mass by its molar mass. Similarly, the number of moles of each type of atom in CH₃OH can be calculated based on its molecular formula.
b) Fe₂O₃: To find the moles of Fe₂O₃, divide the given mass by its molar mass. Subsequently, determine the moles of each type of atom in Fe₂O₃ using the stoichiometry of the compound.
c) C₄H₁₀: Calculate the moles of C₄H₁₀ by dividing the provided mass by its molar mass. Further, determine the moles of each type of atom in C₄H₁₀ based on its molecular formula.
d) H₂CO₃: Find the moles of H₂CO₃ by dividing the given mass by its molar mass. Proceed to determine the moles of each type of atom in H₂CO₃ using the stoichiometry of the compound.
Step-by-step explanation:
a) CH₃OH: The molar mass of CH₃OH is calculated by adding the atomic masses of carbon (C), hydrogen (H), and oxygen (O) in one molecule. Using the molar mass, the number of moles is determined by dividing the given mass by the molar mass. For each type of atom, the moles are obtained from the coefficients in the molecular formula: one mole of C, four moles of H, and one mole of O in each mole of CH₃OH.
b) Fe₂O₃: The molar mass of Fe₂O₃ is determined similarly, considering the atomic masses of iron (Fe) and oxygen (O). Calculating the moles involves dividing the given mass by the molar mass. To find the moles of each type of atom, the stoichiometry of Fe₂O₃ is considered: two moles of Fe and three moles of O in each mole of Fe₂O₃.
c) C₄H₁₀: The molar mass of C₄H₁₀ is calculated, and the moles are determined by dividing the given mass by the molar mass. Examining the molecular formula reveals four moles of C and ten moles of H in each mole of C₄H₁₀.
d) H₂CO₃: Similar calculations are performed for H₂CO₃, considering the molar masses and stoichiometry. The result provides the number of moles for each type of atom in one mole of H₂CO₃.