Input interpretation
![ammonium nitrite | molar mass](../image_source/ffa99f837ecffd4334066bc2203f40fb.png)
ammonium nitrite | molar mass
Result
![Find the molar mass, M, for ammonium nitrite: 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: H_4N_2O_2 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i H (hydrogen) | 4 N (nitrogen) | 2 O (oxygen) | 2 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) | 4 | 1.008 N (nitrogen) | 2 | 14.007 O (oxygen) | 2 | 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) H (hydrogen) | 4 | 1.008 | 4 × 1.008 = 4.032 N (nitrogen) | 2 | 14.007 | 2 × 14.007 = 28.014 O (oxygen) | 2 | 15.999 | 2 × 15.999 = 31.998 M = 4.032 g/mol + 28.014 g/mol + 31.998 g/mol = 64.044 g/mol](../image_source/2fa66b3469fa6299849e2740cb0d1e49.png)
Find the molar mass, M, for ammonium nitrite: 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: H_4N_2O_2 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i H (hydrogen) | 4 N (nitrogen) | 2 O (oxygen) | 2 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) | 4 | 1.008 N (nitrogen) | 2 | 14.007 O (oxygen) | 2 | 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) H (hydrogen) | 4 | 1.008 | 4 × 1.008 = 4.032 N (nitrogen) | 2 | 14.007 | 2 × 14.007 = 28.014 O (oxygen) | 2 | 15.999 | 2 × 15.999 = 31.998 M = 4.032 g/mol + 28.014 g/mol + 31.998 g/mol = 64.044 g/mol
Unit conversion
![0.06404 kg/mol (kilograms per mole)](../image_source/ae231c254f5b0711b1bb895aeeda2413.png)
0.06404 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.089 ≈ 1/11 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/634eaa3e504493ecc7971644c1d159c8.png)
≈ ( 0.089 ≈ 1/11 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.33 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/43ee26d8df0c88fc2a6679a2ff62404b.png)
≈ 0.33 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 1.1 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/38a330bb02c206c3bf7a73b9a1bc7d57.png)
≈ 1.1 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 1.1×10^-22 grams | 1.1×10^-25 kg (kilograms) | 64 u (unified atomic mass units) | 64 Da (daltons)](../image_source/53ea97643ce0c2d1be1b771a559c2e84.png)
Mass of a molecule m from m = M/N_A: | 1.1×10^-22 grams | 1.1×10^-25 kg (kilograms) | 64 u (unified atomic mass units) | 64 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 64](../image_source/ce55d5a631ef2ba0bf924e703db3c0c4.png)
Relative molecular mass M_r from M_r = M_u/M: | 64