Input interpretation
![lithium tert-butoxide | molar mass](../image_source/574043a662d1f58b49b30f12c9331527.png)
lithium tert-butoxide | molar mass
Result
![Find the molar mass, M, for lithium tert-butoxide: 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: (CH_3)_3COLi Use the chemical formula, (CH_3)_3COLi, to count the number of atoms, N_i, for each element: | N_i C (carbon) | 4 H (hydrogen) | 9 Li (lithium) | 1 O (oxygen) | 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) C (carbon) | 4 | 12.011 H (hydrogen) | 9 | 1.008 Li (lithium) | 1 | 6.94 O (oxygen) | 1 | 15.999 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) C (carbon) | 4 | 12.011 | 4 × 12.011 = 48.044 H (hydrogen) | 9 | 1.008 | 9 × 1.008 = 9.072 Li (lithium) | 1 | 6.94 | 1 × 6.94 = 6.94 O (oxygen) | 1 | 15.999 | 1 × 15.999 = 15.999 M = 48.044 g/mol + 9.072 g/mol + 6.94 g/mol + 15.999 g/mol = 80.06 g/mol](../image_source/2af4a0f4c865ec05557ae9d63f8b3a15.png)
Find the molar mass, M, for lithium tert-butoxide: 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: (CH_3)_3COLi Use the chemical formula, (CH_3)_3COLi, to count the number of atoms, N_i, for each element: | N_i C (carbon) | 4 H (hydrogen) | 9 Li (lithium) | 1 O (oxygen) | 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) C (carbon) | 4 | 12.011 H (hydrogen) | 9 | 1.008 Li (lithium) | 1 | 6.94 O (oxygen) | 1 | 15.999 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) C (carbon) | 4 | 12.011 | 4 × 12.011 = 48.044 H (hydrogen) | 9 | 1.008 | 9 × 1.008 = 9.072 Li (lithium) | 1 | 6.94 | 1 × 6.94 = 6.94 O (oxygen) | 1 | 15.999 | 1 × 15.999 = 15.999 M = 48.044 g/mol + 9.072 g/mol + 6.94 g/mol + 15.999 g/mol = 80.06 g/mol
Unit conversion
![0.08006 kg/mol (kilograms per mole)](../image_source/f1ac897981cce0fd4efc1b6446d2fab0.png)
0.08006 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.11 ≈ 1/9 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/88dda915d9f87a6435c9333a64f57c6a.png)
≈ ( 0.11 ≈ 1/9 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.41 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/11768dc75dccb12e824c60c2870253a0.png)
≈ 0.41 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 1.4 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/3c633f822724020f9c50c0a9c22f1f51.png)
≈ 1.4 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 1.3×10^-22 grams | 1.3×10^-25 kg (kilograms) | 80 u (unified atomic mass units) | 80 Da (daltons)](../image_source/0906935028e0ffb6eaaee1993790b183.png)
Mass of a molecule m from m = M/N_A: | 1.3×10^-22 grams | 1.3×10^-25 kg (kilograms) | 80 u (unified atomic mass units) | 80 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 80](../image_source/56ba350a0b2b2150a9662e828688a802.png)
Relative molecular mass M_r from M_r = M_u/M: | 80