Input interpretation
![phenethyl alcohol | molar mass](../image_source/0f815d4874902d79b4d71035a4916261.png)
phenethyl alcohol | molar mass
Result
![Find the molar mass, M, for phenethyl alcohol: 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: C_6H_5CH_2CH_2OH Use the chemical formula, C_6H_5CH_2CH_2OH, to count the number of atoms, N_i, for each element: | N_i C (carbon) | 8 H (hydrogen) | 10 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) | 8 | 12.011 H (hydrogen) | 10 | 1.008 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) | 8 | 12.011 | 8 × 12.011 = 96.088 H (hydrogen) | 10 | 1.008 | 10 × 1.008 = 10.080 O (oxygen) | 1 | 15.999 | 1 × 15.999 = 15.999 M = 96.088 g/mol + 10.080 g/mol + 15.999 g/mol = 122.167 g/mol](../image_source/0cceacff64c7b7151508b0f29c4079e9.png)
Find the molar mass, M, for phenethyl alcohol: 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: C_6H_5CH_2CH_2OH Use the chemical formula, C_6H_5CH_2CH_2OH, to count the number of atoms, N_i, for each element: | N_i C (carbon) | 8 H (hydrogen) | 10 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) | 8 | 12.011 H (hydrogen) | 10 | 1.008 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) | 8 | 12.011 | 8 × 12.011 = 96.088 H (hydrogen) | 10 | 1.008 | 10 × 1.008 = 10.080 O (oxygen) | 1 | 15.999 | 1 × 15.999 = 15.999 M = 96.088 g/mol + 10.080 g/mol + 15.999 g/mol = 122.167 g/mol
Unit conversion
![0.12217 kg/mol (kilograms per mole)](../image_source/a53a2dfa5b31f58376bc75fd432dc72d.png)
0.12217 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.17 ≈ 1/6 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/9708dfa1aa039d0cbf7c7842d1889764.png)
≈ ( 0.17 ≈ 1/6 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.63 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/718ca6c977e7df976e9716d4d343d038.png)
≈ 0.63 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 2.1 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/583bd337cc8a9b9b47f1da8e23e3907a.png)
≈ 2.1 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 2×10^-22 grams | 2×10^-25 kg (kilograms) | 122 u (unified atomic mass units) | 122 Da (daltons)](../image_source/6f30587c318b06860d2cc79d51661d0f.png)
Mass of a molecule m from m = M/N_A: | 2×10^-22 grams | 2×10^-25 kg (kilograms) | 122 u (unified atomic mass units) | 122 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 122](../image_source/6ba5909399db3824bfa2a0911e8ffcdc.png)
Relative molecular mass M_r from M_r = M_u/M: | 122