Input interpretation
![ammonium chlorate | molar mass](../image_source/6ee86ff2c4ae0dc2ac9dc18c043e678b.png)
ammonium chlorate | molar mass
Result
![Find the molar mass, M, for ammonium 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: NH_4ClO_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Cl (chlorine) | 1 H (hydrogen) | 4 N (nitrogen) | 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) Cl (chlorine) | 1 | 35.45 H (hydrogen) | 4 | 1.008 N (nitrogen) | 1 | 14.007 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) Cl (chlorine) | 1 | 35.45 | 1 × 35.45 = 35.45 H (hydrogen) | 4 | 1.008 | 4 × 1.008 = 4.032 N (nitrogen) | 1 | 14.007 | 1 × 14.007 = 14.007 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 M = 35.45 g/mol + 4.032 g/mol + 14.007 g/mol + 47.997 g/mol = 101.49 g/mol](../image_source/e7e9b4abd1cc76c0220b65251aef0234.png)
Find the molar mass, M, for ammonium 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: NH_4ClO_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Cl (chlorine) | 1 H (hydrogen) | 4 N (nitrogen) | 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) Cl (chlorine) | 1 | 35.45 H (hydrogen) | 4 | 1.008 N (nitrogen) | 1 | 14.007 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) Cl (chlorine) | 1 | 35.45 | 1 × 35.45 = 35.45 H (hydrogen) | 4 | 1.008 | 4 × 1.008 = 4.032 N (nitrogen) | 1 | 14.007 | 1 × 14.007 = 14.007 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 M = 35.45 g/mol + 4.032 g/mol + 14.007 g/mol + 47.997 g/mol = 101.49 g/mol
Unit conversion
![0.1015 kg/mol (kilograms per mole)](../image_source/765efa06442c805cbc0ada13027582da.png)
0.1015 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.14 ≈ 1/7 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/dc1fc8093b39c2deeb5e32f1fbc52666.png)
≈ ( 0.14 ≈ 1/7 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.52 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/73f8e8e353ff8a3235620ff82ede93f1.png)
≈ 0.52 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 1.7 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/0ee1e27d14e85f71d03b9c89edf7f326.png)
≈ 1.7 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 1.7×10^-22 grams | 1.7×10^-25 kg (kilograms) | 101 u (unified atomic mass units) | 101 Da (daltons)](../image_source/08ff764e43d4a1ae62288f36e45daa76.png)
Mass of a molecule m from m = M/N_A: | 1.7×10^-22 grams | 1.7×10^-25 kg (kilograms) | 101 u (unified atomic mass units) | 101 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 101](../image_source/50c1fa7bc36c0fb0faaaba7ba4c34b4a.png)
Relative molecular mass M_r from M_r = M_u/M: | 101