Input interpretation
![1, 2-dimethoxyethane | molar mass](../image_source/57631b95707f2c2e8a66592466294840.png)
1, 2-dimethoxyethane | molar mass
Result
![Find the molar mass, M, for 1, 2-dimethoxyethane: 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_3OCH_2CH_2OCH_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 4 H (hydrogen) | 10 O (oxygen) | 2 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) | 10 | 1.008 O (oxygen) | 2 | 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) | 10 | 1.008 | 10 × 1.008 = 10.080 O (oxygen) | 2 | 15.999 | 2 × 15.999 = 31.998 M = 48.044 g/mol + 10.080 g/mol + 31.998 g/mol = 90.122 g/mol](../image_source/f7fe4ba41750e392f425c67372fe3f68.png)
Find the molar mass, M, for 1, 2-dimethoxyethane: 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_3OCH_2CH_2OCH_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 4 H (hydrogen) | 10 O (oxygen) | 2 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) | 10 | 1.008 O (oxygen) | 2 | 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) | 10 | 1.008 | 10 × 1.008 = 10.080 O (oxygen) | 2 | 15.999 | 2 × 15.999 = 31.998 M = 48.044 g/mol + 10.080 g/mol + 31.998 g/mol = 90.122 g/mol
Unit conversion
![0.09012 kg/mol (kilograms per mole)](../image_source/9c80e0d0a023713688a41119825d480c.png)
0.09012 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.13 ≈ 1/8 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/6bcbc046d70a3619eba046c0eb91947a.png)
≈ ( 0.13 ≈ 1/8 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.46 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/adec73219debc9286358ad618c2363c6.png)
≈ 0.46 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 1.5 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/f94d2c401da220e4fc02945f27c259e9.png)
≈ 1.5 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 1.5×10^-22 grams | 1.5×10^-25 kg (kilograms) | 90 u (unified atomic mass units) | 90 Da (daltons)](../image_source/1c806e2fe4ad42b573252e2e744f80e2.png)
Mass of a molecule m from m = M/N_A: | 1.5×10^-22 grams | 1.5×10^-25 kg (kilograms) | 90 u (unified atomic mass units) | 90 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 90](../image_source/f2b8ad618a71f40079bf94c59fe6b832.png)
Relative molecular mass M_r from M_r = M_u/M: | 90