Input interpretation
![calcium iodate | molar mass](../image_source/2c8b23df5073d0ebc38ad587eabbc3ca.png)
calcium iodate | molar mass
Result
![Find the molar mass, M, for calcium 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: Ca(IO_3)_2 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Ca (calcium) | 1 I (iodine) | 2 O (oxygen) | 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) Ca (calcium) | 1 | 40.078 I (iodine) | 2 | 126.90447 O (oxygen) | 6 | 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) Ca (calcium) | 1 | 40.078 | 1 × 40.078 = 40.078 I (iodine) | 2 | 126.90447 | 2 × 126.90447 = 253.80894 O (oxygen) | 6 | 15.999 | 6 × 15.999 = 95.994 M = 40.078 g/mol + 253.80894 g/mol + 95.994 g/mol = 389.881 g/mol](../image_source/d1809ebc09a16177957039173c61b58f.png)
Find the molar mass, M, for calcium 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: Ca(IO_3)_2 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Ca (calcium) | 1 I (iodine) | 2 O (oxygen) | 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) Ca (calcium) | 1 | 40.078 I (iodine) | 2 | 126.90447 O (oxygen) | 6 | 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) Ca (calcium) | 1 | 40.078 | 1 × 40.078 = 40.078 I (iodine) | 2 | 126.90447 | 2 × 126.90447 = 253.80894 O (oxygen) | 6 | 15.999 | 6 × 15.999 = 95.994 M = 40.078 g/mol + 253.80894 g/mol + 95.994 g/mol = 389.881 g/mol
Unit conversion
![0.38988 kg/mol (kilograms per mole)](../image_source/576e915ea31456d1393929b9453582dc.png)
0.38988 kg/mol (kilograms per mole)
Comparisons
![≈ 0.54 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/49c949bed2e9c7460715f6aec0069b1c.png)
≈ 0.54 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 2 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/a37731433b44b2d471c2e8ae6a7e443d.png)
≈ 2 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 6.7 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/67b405a0af56ed1bb4db804bce0c2a34.png)
≈ 6.7 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 6.5×10^-22 grams | 6.5×10^-25 kg (kilograms) | 390 u (unified atomic mass units) | 390 Da (daltons)](../image_source/bf142fdd3e206c15f17d362e63be4ba1.png)
Mass of a molecule m from m = M/N_A: | 6.5×10^-22 grams | 6.5×10^-25 kg (kilograms) | 390 u (unified atomic mass units) | 390 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 390](../image_source/7d590e5e5462c83f1ecd104ed40beee0.png)
Relative molecular mass M_r from M_r = M_u/M: | 390