Input interpretation
![sodium metatitanate | molar mass](../image_source/584f40019625c2960abc6266d1e33093.png)
sodium metatitanate | molar mass
Result
![Find the molar mass, M, for sodium metatitanate: 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: Na_2Ti_3O_7 Use the chemical formula, Na_2Ti_3O_7, to count the number of atoms, N_i, for each element: | N_i Na (sodium) | 2 O (oxygen) | 7 Ti (titanium) | 3 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) Na (sodium) | 2 | 22.98976928 O (oxygen) | 7 | 15.999 Ti (titanium) | 3 | 47.867 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) Na (sodium) | 2 | 22.98976928 | 2 × 22.98976928 = 45.97953856 O (oxygen) | 7 | 15.999 | 7 × 15.999 = 111.993 Ti (titanium) | 3 | 47.867 | 3 × 47.867 = 143.601 M = 45.97953856 g/mol + 111.993 g/mol + 143.601 g/mol = 301.574 g/mol](../image_source/29a71cbf9464a7136396c58e2e9806fd.png)
Find the molar mass, M, for sodium metatitanate: 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: Na_2Ti_3O_7 Use the chemical formula, Na_2Ti_3O_7, to count the number of atoms, N_i, for each element: | N_i Na (sodium) | 2 O (oxygen) | 7 Ti (titanium) | 3 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) Na (sodium) | 2 | 22.98976928 O (oxygen) | 7 | 15.999 Ti (titanium) | 3 | 47.867 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) Na (sodium) | 2 | 22.98976928 | 2 × 22.98976928 = 45.97953856 O (oxygen) | 7 | 15.999 | 7 × 15.999 = 111.993 Ti (titanium) | 3 | 47.867 | 3 × 47.867 = 143.601 M = 45.97953856 g/mol + 111.993 g/mol + 143.601 g/mol = 301.574 g/mol
Unit conversion
![0.30157 kg/mol (kilograms per mole)](../image_source/7b3c9f4d5ef38d35e98e15f47cc16214.png)
0.30157 kg/mol (kilograms per mole)
Comparisons
![≈ 0.42 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/f80a21556415b6a359f3bd2f2c550433.png)
≈ 0.42 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 1.6 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/8bd8c3abcfd01d6298738cbc94367014.png)
≈ 1.6 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 5.2 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/bf6f3d9a0a34e4d77ca88460d564e914.png)
≈ 5.2 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 5×10^-22 grams | 5×10^-25 kg (kilograms) | 302 u (unified atomic mass units) | 302 Da (daltons)](../image_source/95d5a5c86b8efdb679950a53ac1d89ab.png)
Mass of a molecule m from m = M/N_A: | 5×10^-22 grams | 5×10^-25 kg (kilograms) | 302 u (unified atomic mass units) | 302 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 302](../image_source/8b48efa8e13d4d863869990abfc5a8b0.png)
Relative molecular mass M_r from M_r = M_u/M: | 302