Input interpretation
palladium(II) chloride | molecular mass
Result
Find the molecular mass, m, for palladium(II) chloride: 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: Cl_2Pd Use the chemical formula, Cl_2Pd, to count the number of atoms, N_i, for each element: | N_i Cl (chlorine) | 2 Pd (palladium) | 1 Look up the atomic mass, m_i, in unified atomic mass units, u, for each element in the periodic table: | N_i | m_i/u Cl (chlorine) | 2 | 35.45 Pd (palladium) | 1 | 106.42 Multiply N_i by m_i to compute the mass for each element. Then sum those values to compute the molecular mass, m: Answer: | | | N_i | m_i/u | mass/u Cl (chlorine) | 2 | 35.45 | 2 × 35.45 = 70.90 Pd (palladium) | 1 | 106.42 | 1 × 106.42 = 106.42 m = 70.90 u + 106.42 u = 177.32 u
Unit conversions
177.3 Da (daltons)
0.1773 kDa (kilodaltons)
2.944×10^-22 grams
2.944×10^-25 kg (kilograms)
177.3 chemical atomic mass units (unit officially deprecated)
177.4 physical atomic mass units (unit officially deprecated)
Comparisons as mass of molecule
≈ ( 0.25 ≈ 1/4 ) × molecular mass of fullerene ( ≈ 721 u )
≈ 0.91 × molecular mass of caffeine ( ≈ 194 u )
≈ 3 × molecular mass of sodium chloride ( ≈ 58 u )
Corresponding quantities
Relative atomic mass A_r from A_r = m_aN_A/M_u: | 177
Molar mass M from M = m_aN_A: | 177 g/mol (grams per mole)
Relative molecular mass M_r from M_r = m_mN_A/M_u: | 177
Molar mass M from M = m_mN_A: | 177 g/mol (grams per mole)