Input interpretation
![sodium nitrate | molar mass](../image_source/a12de18b4f198a2ca7b5112899ef747e.png)
sodium nitrate | molar mass
Result
![Find the molar mass, M, for sodium nitrate: 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: NaNO_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i N (nitrogen) | 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) N (nitrogen) | 1 | 14.007 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) N (nitrogen) | 1 | 14.007 | 1 × 14.007 = 14.007 Na (sodium) | 1 | 22.98976928 | 1 × 22.98976928 = 22.98976928 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 M = 14.007 g/mol + 22.98976928 g/mol + 47.997 g/mol = 84.994 g/mol](../image_source/ce91d9d9c2d26b4ddaefef02d6981885.png)
Find the molar mass, M, for sodium nitrate: 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: NaNO_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i N (nitrogen) | 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) N (nitrogen) | 1 | 14.007 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) N (nitrogen) | 1 | 14.007 | 1 × 14.007 = 14.007 Na (sodium) | 1 | 22.98976928 | 1 × 22.98976928 = 22.98976928 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 M = 14.007 g/mol + 22.98976928 g/mol + 47.997 g/mol = 84.994 g/mol
Unit conversion
![0.084994 kg/mol (kilograms per mole)](../image_source/343936b9aab0504a6a7fcbfc8bc147bf.png)
0.084994 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.12 ≈ 1/8 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/254b2dab9ea8967cf1b49626fe9efce4.png)
≈ ( 0.12 ≈ 1/8 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.44 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/9c0c9c9b499efc33759b4dcb351f1e7c.png)
≈ 0.44 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 1.5 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/fcf91c4d2e81f22b5116e023da7ea326.png)
≈ 1.5 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 1.4×10^-22 grams | 1.4×10^-25 kg (kilograms) | 85 u (unified atomic mass units) | 85 Da (daltons)](../image_source/e454167069266ef17ecc379c2a0e7496.png)
Mass of a molecule m from m = M/N_A: | 1.4×10^-22 grams | 1.4×10^-25 kg (kilograms) | 85 u (unified atomic mass units) | 85 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 85](../image_source/e99ba24a362478bccf9aa6870dc97114.png)
Relative molecular mass M_r from M_r = M_u/M: | 85