Input interpretation
![potassium hexachlorotellurate | molar mass](../image_source/db07f79c4adbbc8d8a69379f7121cdcd.png)
potassium hexachlorotellurate | molar mass
Result
![Find the molar mass, M, for potassium hexachlorotellurate: 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: K_2TeCl_6 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Cl (chlorine) | 6 K (potassium) | 6 O (oxygen) | 18 Te (tellurium) | 6 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) Cl (chlorine) | 6 | 35.45 K (potassium) | 6 | 39.0983 O (oxygen) | 18 | 15.999 Te (tellurium) | 6 | 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: | | | N_i | m_i/g·mol^(-1) | mass/g·mol^(-1) Cl (chlorine) | 6 | 35.45 | 6 × 35.45 = 212.70 K (potassium) | 6 | 39.0983 | 6 × 39.0983 = 234.5898 O (oxygen) | 18 | 15.999 | 18 × 15.999 = 287.982 Te (tellurium) | 6 | 127.60 | 6 × 127.60 = 765.60 M = 212.70 g/mol + 234.5898 g/mol + 287.982 g/mol + 765.60 g/mol = 1500.87 g/mol](../image_source/6d06f1c18dd1dc828bc9c99ee48ce12b.png)
Find the molar mass, M, for potassium hexachlorotellurate: 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: K_2TeCl_6 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Cl (chlorine) | 6 K (potassium) | 6 O (oxygen) | 18 Te (tellurium) | 6 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) Cl (chlorine) | 6 | 35.45 K (potassium) | 6 | 39.0983 O (oxygen) | 18 | 15.999 Te (tellurium) | 6 | 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: | | | N_i | m_i/g·mol^(-1) | mass/g·mol^(-1) Cl (chlorine) | 6 | 35.45 | 6 × 35.45 = 212.70 K (potassium) | 6 | 39.0983 | 6 × 39.0983 = 234.5898 O (oxygen) | 18 | 15.999 | 18 × 15.999 = 287.982 Te (tellurium) | 6 | 127.60 | 6 × 127.60 = 765.60 M = 212.70 g/mol + 234.5898 g/mol + 287.982 g/mol + 765.60 g/mol = 1500.87 g/mol
Unit conversion
![1.5009 kg/mol (kilograms per mole)](../image_source/6baf5fa8be59bf656a2057770b5eea12.png)
1.5009 kg/mol (kilograms per mole)
Comparisons
![≈ 2.1 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/b215aa4bbbfeef38295fd98d32f22808.png)
≈ 2.1 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 7.7 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/dadb673102877d32bb43cc8dc4107b19.png)
≈ 7.7 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 26 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/eef45b2bbd872ac8edd232013e4d73d5.png)
≈ 26 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 2.5×10^-21 grams | 2.5×10^-24 kg (kilograms) | 1501 u (unified atomic mass units) | 1.5 kDa (kilodaltons)](../image_source/6f82fa8ed234bf6f003389d386f7f935.png)
Mass of a molecule m from m = M/N_A: | 2.5×10^-21 grams | 2.5×10^-24 kg (kilograms) | 1501 u (unified atomic mass units) | 1.5 kDa (kilodaltons)
![Relative molecular mass M_r from M_r = M_u/M: | 1501](../image_source/eb3466e61fd1843e424a5c03473d9c1f.png)
Relative molecular mass M_r from M_r = M_u/M: | 1501