Input interpretation
titanium(IV) iodide | molar mass
Result
Find the molar mass, M, for titanium(IV) iodide: M = sum _iN_im_i Plan: • Write the chemical formula and gather atomic masses from the periodic table. • Determine values for N_i and m_i using these items. • Finally, compute the mass. Write the chemical formula: TiI_4 Use the chemical formula to count the number of atoms, N_i, for each element: | number of atoms I (iodine) | 4 Ti (titanium) | 1 Look up the atomic mass, m_i, in g·mol^(-1) for each element in the periodic table: | number of atoms | atomic mass/g·mol^(-1) I (iodine) | 4 | 126.90447 Ti (titanium) | 1 | 47.867 Multiply N_i by m_i to compute the mass for each element. Then sum those values to compute the molar mass, M: Answer: | | | number of atoms | atomic mass/g·mol^(-1) | mass/g·mol^(-1) I (iodine) | 4 | 126.90447 | 4 × 126.90447 = 507.61788 Ti (titanium) | 1 | 47.867 | 1 × 47.867 = 47.867 M = 507.61788 g/mol + 47.867 g/mol = 555.485 g/mol
Unit conversion
0.555485 kg/mol (kilograms per mole)
Comparisons
≈ 0.77 × molar mass of fullerene (≈ 721 g/mol )
≈ 2.9 × molar mass of caffeine (≈ 194 g/mol )
≈ 9.5 × molar mass of sodium chloride (≈ 58 g/mol )
Corresponding quantities
Mass of a molecule m from m = M/N_A: | 9.2×10^-22 grams | 9.2×10^-25 kg (kilograms) | 555 u (unified atomic mass units) | 555 Da (daltons)
Relative molecular mass M_r from M_r = M_u/M: | 555