Input interpretation
![rhodium(VI) fluoride | molar mass](../image_source/81407ca88bac854585adbdcf1955d67f.png)
rhodium(VI) fluoride | molar mass
Result
![Find the molar mass, M, for rhodium(VI) fluoride: 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: RhF_6 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i F (fluorine) | 6 Rh (rhodium) | 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) F (fluorine) | 6 | 18.998403163 Rh (rhodium) | 1 | 102.90550 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) F (fluorine) | 6 | 18.998403163 | 6 × 18.998403163 = 113.990418978 Rh (rhodium) | 1 | 102.90550 | 1 × 102.90550 = 102.90550 M = 113.990418978 g/mol + 102.90550 g/mol = 216.89592 g/mol](../image_source/af19a1d252ba1a61412b8b8eaebb32e4.png)
Find the molar mass, M, for rhodium(VI) fluoride: 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: RhF_6 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i F (fluorine) | 6 Rh (rhodium) | 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) F (fluorine) | 6 | 18.998403163 Rh (rhodium) | 1 | 102.90550 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) F (fluorine) | 6 | 18.998403163 | 6 × 18.998403163 = 113.990418978 Rh (rhodium) | 1 | 102.90550 | 1 × 102.90550 = 102.90550 M = 113.990418978 g/mol + 102.90550 g/mol = 216.89592 g/mol
Unit conversion
![0.21689592 kg/mol (kilograms per mole)](../image_source/ddbb3b45d2aff317493cc4b79f485b61.png)
0.21689592 kg/mol (kilograms per mole)
Comparisons
![≈ 0.3 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/e71304d0415ea683e9e91338d04d5f43.png)
≈ 0.3 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 1.1 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/f6ee82e4c1fb18e4ddbc2a44a86b864e.png)
≈ 1.1 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 3.7 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/acd750b5d20c9c87337563b469ad4ac2.png)
≈ 3.7 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 3.6×10^-22 grams | 3.6×10^-25 kg (kilograms) | 217 u (unified atomic mass units) | 217 Da (daltons)](../image_source/96d1fa5f7a25a4edb3ca9ffa88838e78.png)
Mass of a molecule m from m = M/N_A: | 3.6×10^-22 grams | 3.6×10^-25 kg (kilograms) | 217 u (unified atomic mass units) | 217 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 217](../image_source/322592146ff93a0cdaaebf23de261971.png)
Relative molecular mass M_r from M_r = M_u/M: | 217