Input interpretation
![barium metasilicate | molar mass](../image_source/17a7a8d50b35479001ae1de52dfc47cc.png)
barium metasilicate | molar mass
Result
![Find the molar mass, M, for barium metasilicate: 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: BaSiO_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Ba (barium) | 1 O (oxygen) | 3 Si (silicon) | 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) Ba (barium) | 1 | 137.327 O (oxygen) | 3 | 15.999 Si (silicon) | 1 | 28.085 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) Ba (barium) | 1 | 137.327 | 1 × 137.327 = 137.327 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 Si (silicon) | 1 | 28.085 | 1 × 28.085 = 28.085 M = 137.327 g/mol + 47.997 g/mol + 28.085 g/mol = 213.409 g/mol](../image_source/063df0be5fe12dcf30ce8d93e54c0887.png)
Find the molar mass, M, for barium metasilicate: 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: BaSiO_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Ba (barium) | 1 O (oxygen) | 3 Si (silicon) | 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) Ba (barium) | 1 | 137.327 O (oxygen) | 3 | 15.999 Si (silicon) | 1 | 28.085 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) Ba (barium) | 1 | 137.327 | 1 × 137.327 = 137.327 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 Si (silicon) | 1 | 28.085 | 1 × 28.085 = 28.085 M = 137.327 g/mol + 47.997 g/mol + 28.085 g/mol = 213.409 g/mol
Unit conversion
![0.21341 kg/mol (kilograms per mole)](../image_source/5367436066f13c6700fed27ac821b830.png)
0.21341 kg/mol (kilograms per mole)
Comparisons
![≈ 0.3 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/936c41ff173d8a18d0ffd34f7f6e7259.png)
≈ 0.3 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 1.1 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/81dc28230769cfbff5a5f79a9c9111b9.png)
≈ 1.1 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 3.7 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/87476bfa88fd426badc9c4d581f52dc8.png)
≈ 3.7 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 3.5×10^-22 grams | 3.5×10^-25 kg (kilograms) | 213 u (unified atomic mass units) | 213 Da (daltons)](../image_source/c88886b5eea7df078484f5b860c5b110.png)
Mass of a molecule m from m = M/N_A: | 3.5×10^-22 grams | 3.5×10^-25 kg (kilograms) | 213 u (unified atomic mass units) | 213 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 213](../image_source/f367139e46cad90540c3bacbff5d7396.png)
Relative molecular mass M_r from M_r = M_u/M: | 213