Input interpretation
uranyl sulfate | molar mass
Result
Find the molar mass, M, for uranyl sulfate: 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: UO_2SO_4 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i O (oxygen) | 6 S (sulfur) | 1 U (uranium) | 1 Look up the atomic mass, m_i, in g·mol^(-1) for each element in the periodic table: | N_i | m_i/g·mol^(-1) O (oxygen) | 6 | 15.999 S (sulfur) | 1 | 32.06 U (uranium) | 1 | 238.02891 Multiply N_i by m_i to compute the mass for each element. Then sum those values to compute the molar mass, M: Answer: | | | N_i | m_i/g·mol^(-1) | mass/g·mol^(-1) O (oxygen) | 6 | 15.999 | 6 × 15.999 = 95.994 S (sulfur) | 1 | 32.06 | 1 × 32.06 = 32.06 U (uranium) | 1 | 238.02891 | 1 × 238.02891 = 238.02891 M = 95.994 g/mol + 32.06 g/mol + 238.02891 g/mol = 366.08 g/mol
Unit conversion
0.36608 kg/mol (kilograms per mole)
Comparisons
≈ 0.51 × molar mass of fullerene ( ≈ 721 g/mol )
≈ 1.9 × molar mass of caffeine ( ≈ 194 g/mol )
≈ 6.3 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
Mass of a molecule m from m = M/N_A: | 6.1×10^-22 grams | 6.1×10^-25 kg (kilograms) | 366 u (unified atomic mass units) | 366 Da (daltons)
Relative molecular mass M_r from M_r = M_u/M: | 366