Input interpretation
![silver chloride | molar mass](../image_source/75c81cca58206f5691defe189e068c3c.png)
silver chloride | molar mass
Result
![Find the molar mass, M, for silver chloride: 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: AgCl Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Ag (silver) | 1 Cl (chlorine) | 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) Ag (silver) | 1 | 107.8682 Cl (chlorine) | 1 | 35.45 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) Ag (silver) | 1 | 107.8682 | 1 × 107.8682 = 107.8682 Cl (chlorine) | 1 | 35.45 | 1 × 35.45 = 35.45 M = 107.8682 g/mol + 35.45 g/mol = 143.32 g/mol](../image_source/1687874240d152295737c557fde3ef90.png)
Find the molar mass, M, for silver chloride: 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: AgCl Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Ag (silver) | 1 Cl (chlorine) | 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) Ag (silver) | 1 | 107.8682 Cl (chlorine) | 1 | 35.45 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) Ag (silver) | 1 | 107.8682 | 1 × 107.8682 = 107.8682 Cl (chlorine) | 1 | 35.45 | 1 × 35.45 = 35.45 M = 107.8682 g/mol + 35.45 g/mol = 143.32 g/mol
Unit conversion
![0.14332 kg/mol (kilograms per mole)](../image_source/6ab50efff9113e83b118d90f747725d8.png)
0.14332 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.2 ≈ 1/5 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/8d6a56adedd1e56bb9bce9b9cf301299.png)
≈ ( 0.2 ≈ 1/5 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.74 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/af4b328e777ded35eea1a4eeb81480d5.png)
≈ 0.74 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 2.5 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/a20aa9e3da86cab71570027517dba39e.png)
≈ 2.5 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 2.4×10^-22 grams | 2.4×10^-25 kg (kilograms) | 143 u (unified atomic mass units) | 143 Da (daltons)](../image_source/d93f1c24da6da68a6e80c191774f2d22.png)
Mass of a molecule m from m = M/N_A: | 2.4×10^-22 grams | 2.4×10^-25 kg (kilograms) | 143 u (unified atomic mass units) | 143 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 143](../image_source/34ea14d2b75932864e3394b378b0ab25.png)
Relative molecular mass M_r from M_r = M_u/M: | 143