Input interpretation
![neodymium(III) sulfate | molar mass](../image_source/86e99ff5c830acd699d448c80e517441.png)
neodymium(III) sulfate | molar mass
Result
![Find the molar mass, M, for neodymium(III) sulfate: 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: Nd_2(SO_4)_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Nd (neodymium) | 2 O (oxygen) | 12 S (sulfur) | 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) Nd (neodymium) | 2 | 144.242 O (oxygen) | 12 | 15.999 S (sulfur) | 3 | 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) Nd (neodymium) | 2 | 144.242 | 2 × 144.242 = 288.484 O (oxygen) | 12 | 15.999 | 12 × 15.999 = 191.988 S (sulfur) | 3 | 32.06 | 3 × 32.06 = 96.18 M = 288.484 g/mol + 191.988 g/mol + 96.18 g/mol = 576.65 g/mol](../image_source/040b305cec22d64b2dbdccc1fa189b7e.png)
Find the molar mass, M, for neodymium(III) sulfate: 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: Nd_2(SO_4)_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Nd (neodymium) | 2 O (oxygen) | 12 S (sulfur) | 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) Nd (neodymium) | 2 | 144.242 O (oxygen) | 12 | 15.999 S (sulfur) | 3 | 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) Nd (neodymium) | 2 | 144.242 | 2 × 144.242 = 288.484 O (oxygen) | 12 | 15.999 | 12 × 15.999 = 191.988 S (sulfur) | 3 | 32.06 | 3 × 32.06 = 96.18 M = 288.484 g/mol + 191.988 g/mol + 96.18 g/mol = 576.65 g/mol
Unit conversion
![0.5767 kg/mol (kilograms per mole)](../image_source/9c6accc9e1c4cce2b40f71ec4c44397c.png)
0.5767 kg/mol (kilograms per mole)
Comparisons
![≈ 0.8 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/c33fc58d6a0d64c77619269aec7e4886.png)
≈ 0.8 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 3 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/5b79b4ea9c6a61b937d41b117e482de7.png)
≈ 3 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 9.9 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/f473691f2683c8cf31cc4d265b5fcbf6.png)
≈ 9.9 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 9.6×10^-22 grams | 9.6×10^-25 kg (kilograms) | 577 u (unified atomic mass units) | 577 Da (daltons)](../image_source/c36ab0c69a3c7ef4b54ccf2aa7c5d2d2.png)
Mass of a molecule m from m = M/N_A: | 9.6×10^-22 grams | 9.6×10^-25 kg (kilograms) | 577 u (unified atomic mass units) | 577 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 577](../image_source/6325f93331906e720ed0c15b52789f34.png)
Relative molecular mass M_r from M_r = M_u/M: | 577