Input interpretation
![tin(IV) bromide | molar mass](../image_source/c9b2988b47b51736ec0235f33cb9bc58.png)
tin(IV) bromide | molar mass
Result
![Find the molar mass, M, for tin(IV) bromide: 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: SnBr_4 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Br (bromine) | 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) Br (bromine) | 4 | 79.904 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) Br (bromine) | 4 | 79.904 | 4 × 79.904 = 319.616 Sn (tin) | 1 | 118.710 | 1 × 118.710 = 118.710 M = 319.616 g/mol + 118.710 g/mol = 438.326 g/mol](../image_source/8b3c817d1002320bf3ac4a4ad70d80ca.png)
Find the molar mass, M, for tin(IV) bromide: 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: SnBr_4 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Br (bromine) | 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) Br (bromine) | 4 | 79.904 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) Br (bromine) | 4 | 79.904 | 4 × 79.904 = 319.616 Sn (tin) | 1 | 118.710 | 1 × 118.710 = 118.710 M = 319.616 g/mol + 118.710 g/mol = 438.326 g/mol
Unit conversion
![0.43833 kg/mol (kilograms per mole)](../image_source/9f95ce0ae33c25270dbc69cfb6c72fd3.png)
0.43833 kg/mol (kilograms per mole)
Comparisons
![≈ 0.61 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/6cd3c3452969b9c903b12c3c79db37b3.png)
≈ 0.61 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 2.3 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/74b6b6f4bfcd84f5bb4094e8db69d805.png)
≈ 2.3 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 7.5 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/114b37fc546d96b24e452ad4336347de.png)
≈ 7.5 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 7.3×10^-22 grams | 7.3×10^-25 kg (kilograms) | 438 u (unified atomic mass units) | 438 Da (daltons)](../image_source/7702d1811f3ca0a25c2768a7015bc0a9.png)
Mass of a molecule m from m = M/N_A: | 7.3×10^-22 grams | 7.3×10^-25 kg (kilograms) | 438 u (unified atomic mass units) | 438 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 438](../image_source/3fc3b7e13af0e97450800d38f8aa88cd.png)
Relative molecular mass M_r from M_r = M_u/M: | 438