Input interpretation
tellurium tetranitrate | molar mass
Result
Find the molar mass, M, for tellurium tetranitrate: 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: N_4O_12Te Use the chemical formula to count the number of atoms, N_i, for each element: | number of atoms N (nitrogen) | 4 O (oxygen) | 12 Te (tellurium) | 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) N (nitrogen) | 4 | 14.007 O (oxygen) | 12 | 15.999 Te (tellurium) | 1 | 127.60 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) N (nitrogen) | 4 | 14.007 | 4 × 14.007 = 56.028 O (oxygen) | 12 | 15.999 | 12 × 15.999 = 191.988 Te (tellurium) | 1 | 127.60 | 1 × 127.60 = 127.60 M = 56.028 g/mol + 191.988 g/mol + 127.60 g/mol = 375.62 g/mol
Unit conversion
0.37562 kg/mol (kilograms per mole)
Comparisons
≈ 0.52 × molar mass of fullerene (≈ 721 g/mol )
≈ 1.9 × molar mass of caffeine (≈ 194 g/mol )
≈ 6.4 × molar mass of sodium chloride (≈ 58 g/mol )
Corresponding quantities
Mass of a molecule m from m = M/N_A: | 6.2×10^-22 grams | 6.2×10^-25 kg (kilograms) | 376 u (unified atomic mass units) | 376 Da (daltons)
Relative molecular mass M_r from M_r = M_u/M: | 376