Input interpretation
![sodium iodate | molar mass](../image_source/89444c5dab53396cb5fa9478e3701d80.png)
sodium iodate | molar mass
Result
![Find the molar mass, M, for sodium iodate: 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: NaIO_3 Use the chemical formula, NaIO_3, to count the number of atoms, N_i, for each element: | N_i I (iodine) | 1 Na (sodium) | 1 O (oxygen) | 3 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) I (iodine) | 1 | 126.90447 Na (sodium) | 1 | 22.98976928 O (oxygen) | 3 | 15.999 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) I (iodine) | 1 | 126.90447 | 1 × 126.90447 = 126.90447 Na (sodium) | 1 | 22.98976928 | 1 × 22.98976928 = 22.98976928 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 M = 126.90447 g/mol + 22.98976928 g/mol + 47.997 g/mol = 197.891 g/mol](../image_source/9226cbe29bd523f478e9c715c2c1d8c0.png)
Find the molar mass, M, for sodium iodate: 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: NaIO_3 Use the chemical formula, NaIO_3, to count the number of atoms, N_i, for each element: | N_i I (iodine) | 1 Na (sodium) | 1 O (oxygen) | 3 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) I (iodine) | 1 | 126.90447 Na (sodium) | 1 | 22.98976928 O (oxygen) | 3 | 15.999 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) I (iodine) | 1 | 126.90447 | 1 × 126.90447 = 126.90447 Na (sodium) | 1 | 22.98976928 | 1 × 22.98976928 = 22.98976928 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 M = 126.90447 g/mol + 22.98976928 g/mol + 47.997 g/mol = 197.891 g/mol
Unit conversion
![0.197891 kg/mol (kilograms per mole)](../image_source/7a50fbcfd6240ba0a4c10946d7d05c2c.png)
0.197891 kg/mol (kilograms per mole)
Comparisons
![≈ 0.27 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/91016149642bd3682ef1c3c95e93e578.png)
≈ 0.27 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ molar mass of caffeine ( ≈ 194 g/mol )](../image_source/090e6882be42ac84c8e95b69d4df790b.png)
≈ molar mass of caffeine ( ≈ 194 g/mol )
![≈ 3.4 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/2f48b3d7ae251d5a7af8015d77629928.png)
≈ 3.4 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 3.3×10^-22 grams | 3.3×10^-25 kg (kilograms) | 198 u (unified atomic mass units) | 198 Da (daltons)](../image_source/765f631f9f587cfe56cb1736543ed2d3.png)
Mass of a molecule m from m = M/N_A: | 3.3×10^-22 grams | 3.3×10^-25 kg (kilograms) | 198 u (unified atomic mass units) | 198 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 198](../image_source/386ce7dcb0cf21c8fcf22667546550cd.png)
Relative molecular mass M_r from M_r = M_u/M: | 198