Input interpretation
![calcium chlorate | molar mass](../image_source/12bf56e9cb08a511c5f8a7eb9e6e8f70.png)
calcium chlorate | molar mass
Result
![Find the molar mass, M, for calcium chlorate: 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: CaCl_2O_6 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Ca (calcium) | 1 Cl (chlorine) | 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 Cl (chlorine) | 2 | 35.45 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 Cl (chlorine) | 2 | 35.45 | 2 × 35.45 = 70.90 O (oxygen) | 6 | 15.999 | 6 × 15.999 = 95.994 M = 40.078 g/mol + 70.90 g/mol + 95.994 g/mol = 206.97 g/mol](../image_source/3d39655cd94da022f7086b38c269e82c.png)
Find the molar mass, M, for calcium chlorate: 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: CaCl_2O_6 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Ca (calcium) | 1 Cl (chlorine) | 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 Cl (chlorine) | 2 | 35.45 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 Cl (chlorine) | 2 | 35.45 | 2 × 35.45 = 70.90 O (oxygen) | 6 | 15.999 | 6 × 15.999 = 95.994 M = 40.078 g/mol + 70.90 g/mol + 95.994 g/mol = 206.97 g/mol
Unit conversion
![0.207 kg/mol (kilograms per mole)](../image_source/78149cf96bff054f881650d142121185.png)
0.207 kg/mol (kilograms per mole)
Comparisons
![≈ 0.29 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/87a4a5b752fa594abb88b2f439ceec5c.png)
≈ 0.29 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 1.1 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/3c8cb011575964ca44dce43fc1793f3f.png)
≈ 1.1 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 3.5 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/24c686f2e285b4ef16843633845bd7b2.png)
≈ 3.5 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 3.4×10^-22 grams | 3.4×10^-25 kg (kilograms) | 207 u (unified atomic mass units) | 207 Da (daltons)](../image_source/b87f16b484576e3bc65201481b2c4151.png)
Mass of a molecule m from m = M/N_A: | 3.4×10^-22 grams | 3.4×10^-25 kg (kilograms) | 207 u (unified atomic mass units) | 207 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 207](../image_source/d8af3ef49ccd5c7fba95cf240a60d062.png)
Relative molecular mass M_r from M_r = M_u/M: | 207