Input interpretation
![stannic chloride | molar mass](../image_source/337be42768b6fc3f296fbbfe8b6d75d1.png)
stannic chloride | molar mass
Result
![Find the molar mass, M, for stannic 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: SnCl_4 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Cl (chlorine) | 4 Sn (tin) | 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) Cl (chlorine) | 4 | 35.45 Sn (tin) | 1 | 118.710 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) | 4 | 35.45 | 4 × 35.45 = 141.80 Sn (tin) | 1 | 118.710 | 1 × 118.710 = 118.710 M = 141.80 g/mol + 118.710 g/mol = 260.51 g/mol](../image_source/c890456599558365d267400b8fff3846.png)
Find the molar mass, M, for stannic 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: SnCl_4 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Cl (chlorine) | 4 Sn (tin) | 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) Cl (chlorine) | 4 | 35.45 Sn (tin) | 1 | 118.710 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) | 4 | 35.45 | 4 × 35.45 = 141.80 Sn (tin) | 1 | 118.710 | 1 × 118.710 = 118.710 M = 141.80 g/mol + 118.710 g/mol = 260.51 g/mol
Unit conversion
![0.2605 kg/mol (kilograms per mole)](../image_source/bfe19a66d139ca9ee1ac44e4aa6729bf.png)
0.2605 kg/mol (kilograms per mole)
Comparisons
![≈ 0.36 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/de7096cbaf9a0807449f1525bb2321ad.png)
≈ 0.36 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 1.3 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/e33e0c4ed477fb3a41f8ca95945a9b9d.png)
≈ 1.3 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 4.5 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/e2cd94a02ec569a27bac32eec495ec75.png)
≈ 4.5 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 4.3×10^-22 grams | 4.3×10^-25 kg (kilograms) | 261 u (unified atomic mass units) | 261 Da (daltons)](../image_source/d437a37a63ebae2aff4ff704aecd4d0c.png)
Mass of a molecule m from m = M/N_A: | 4.3×10^-22 grams | 4.3×10^-25 kg (kilograms) | 261 u (unified atomic mass units) | 261 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 261](../image_source/01c8a168a471b9447db47fd11000a617.png)
Relative molecular mass M_r from M_r = M_u/M: | 261