Input interpretation
![silver nitrate | molecular mass](../image_source/d5e0240a0fa862db90411ad90e05d309.png)
silver nitrate | molecular mass
Result
![Find the molecular mass, m, for silver 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: AgNO_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Ag (silver) | 1 N (nitrogen) | 1 O (oxygen) | 3 Look up the atomic mass, m_i, in unified atomic mass units, u, for each element in the periodic table: | N_i | m_i/u Ag (silver) | 1 | 107.8682 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 molecular mass, m: Answer: | | | N_i | m_i/u | mass/u Ag (silver) | 1 | 107.8682 | 1 × 107.8682 = 107.8682 N (nitrogen) | 1 | 14.007 | 1 × 14.007 = 14.007 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 m = 107.8682 u + 14.007 u + 47.997 u = 169.872 u](../image_source/589347d9eb66c670cd95046f11a5a8ed.png)
Find the molecular mass, m, for silver 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: AgNO_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Ag (silver) | 1 N (nitrogen) | 1 O (oxygen) | 3 Look up the atomic mass, m_i, in unified atomic mass units, u, for each element in the periodic table: | N_i | m_i/u Ag (silver) | 1 | 107.8682 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 molecular mass, m: Answer: | | | N_i | m_i/u | mass/u Ag (silver) | 1 | 107.8682 | 1 × 107.8682 = 107.8682 N (nitrogen) | 1 | 14.007 | 1 × 14.007 = 14.007 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 m = 107.8682 u + 14.007 u + 47.997 u = 169.872 u
Unit conversions
![169.87 Da (daltons)](../image_source/b7e9d19dfe43ca1faab6a9541aa12514.png)
169.87 Da (daltons)
![0.16987 kDa (kilodaltons)](../image_source/7080bd0e9f10fcf7ad7850d18edfc868.png)
0.16987 kDa (kilodaltons)
![2.8208×10^-22 grams](../image_source/7d62e5dc653e7acdc048c28b78769043.png)
2.8208×10^-22 grams
![2.8208×10^-25 kg (kilograms)](../image_source/d6584b8ead0f0a3593345dbdd18035fd.png)
2.8208×10^-25 kg (kilograms)
![169.88 chemical atomic mass units (unit officially deprecated)](../image_source/d510e0819153f9f8f436641b26c79a46.png)
169.88 chemical atomic mass units (unit officially deprecated)
![169.93 physical atomic mass units (unit officially deprecated)](../image_source/d0da614cd0d73bcd7baf92676b31904e.png)
169.93 physical atomic mass units (unit officially deprecated)
Comparisons as mass of molecule
![≈ ( 0.24 ≈ 1/4 ) × molecular mass of fullerene ( ≈ 721 u )](../image_source/638e26d22522c4cd3a0f786793b78e67.png)
≈ ( 0.24 ≈ 1/4 ) × molecular mass of fullerene ( ≈ 721 u )
![≈ 0.87 × molecular mass of caffeine ( ≈ 194 u )](../image_source/ed8e00ff40871f5e554e1bbfd79dadd1.png)
≈ 0.87 × molecular mass of caffeine ( ≈ 194 u )
![≈ 2.9 × molecular mass of sodium chloride ( ≈ 58 u )](../image_source/86179c81463938717ee8a7981903fd22.png)
≈ 2.9 × molecular mass of sodium chloride ( ≈ 58 u )
Corresponding quantities
![Relative atomic mass A_r from A_r = m_aN_A/M_u: | 170](../image_source/aac628bc0a63217bbe88d9bf3c24a1f0.png)
Relative atomic mass A_r from A_r = m_aN_A/M_u: | 170
![Molar mass M from M = m_aN_A: | 170 g/mol (grams per mole)](../image_source/e54bd04df1b1390ffe0e2d15c06bf5f3.png)
Molar mass M from M = m_aN_A: | 170 g/mol (grams per mole)
![Relative molecular mass M_r from M_r = m_mN_A/M_u: | 170](../image_source/f0e597e0787f76ddcea9f583a8a179d2.png)
Relative molecular mass M_r from M_r = m_mN_A/M_u: | 170
![Molar mass M from M = m_mN_A: | 170 g/mol (grams per mole)](../image_source/ac270ce8f50c90acfde7cf57d29b567a.png)
Molar mass M from M = m_mN_A: | 170 g/mol (grams per mole)