Input interpretation
![sodium bisulfate | molar mass](../image_source/481e954847e029a42abee4b1e5573ac9.png)
sodium bisulfate | molar mass
Result
![Find the molar mass, M, for sodium bisulfate: 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: NaHSO_4 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i H (hydrogen) | 1 Na (sodium) | 1 O (oxygen) | 4 S (sulfur) | 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) H (hydrogen) | 1 | 1.008 Na (sodium) | 1 | 22.98976928 O (oxygen) | 4 | 15.999 S (sulfur) | 1 | 32.06 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) H (hydrogen) | 1 | 1.008 | 1 × 1.008 = 1.008 Na (sodium) | 1 | 22.98976928 | 1 × 22.98976928 = 22.98976928 O (oxygen) | 4 | 15.999 | 4 × 15.999 = 63.996 S (sulfur) | 1 | 32.06 | 1 × 32.06 = 32.06 M = 1.008 g/mol + 22.98976928 g/mol + 63.996 g/mol + 32.06 g/mol = 120.05 g/mol](../image_source/16859dbccfcef6e473cb84837d636f88.png)
Find the molar mass, M, for sodium bisulfate: 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: NaHSO_4 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i H (hydrogen) | 1 Na (sodium) | 1 O (oxygen) | 4 S (sulfur) | 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) H (hydrogen) | 1 | 1.008 Na (sodium) | 1 | 22.98976928 O (oxygen) | 4 | 15.999 S (sulfur) | 1 | 32.06 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) H (hydrogen) | 1 | 1.008 | 1 × 1.008 = 1.008 Na (sodium) | 1 | 22.98976928 | 1 × 22.98976928 = 22.98976928 O (oxygen) | 4 | 15.999 | 4 × 15.999 = 63.996 S (sulfur) | 1 | 32.06 | 1 × 32.06 = 32.06 M = 1.008 g/mol + 22.98976928 g/mol + 63.996 g/mol + 32.06 g/mol = 120.05 g/mol
Unit conversion
![0.1201 kg/mol (kilograms per mole)](../image_source/2ef4c509793bdbec3f056842fcc463fc.png)
0.1201 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.17 ≈ 1/6 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/9c069dc54aed7bb7f5a67203595fb053.png)
≈ ( 0.17 ≈ 1/6 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.62 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/83c96aa564163ef53c9bdff6237c7e27.png)
≈ 0.62 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 2.1 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/c5bedf74af33b187be1557c70bfcfdcd.png)
≈ 2.1 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 2×10^-22 grams | 2×10^-25 kg (kilograms) | 120 u (unified atomic mass units) | 120 Da (daltons)](../image_source/ac7b628c88efd56e9f171cefe4d85a51.png)
Mass of a molecule m from m = M/N_A: | 2×10^-22 grams | 2×10^-25 kg (kilograms) | 120 u (unified atomic mass units) | 120 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 120](../image_source/fc3617c99cd9c0a415e4f1338354782f.png)
Relative molecular mass M_r from M_r = M_u/M: | 120