Input interpretation
![cyclopropanemethanol | molar mass](../image_source/e074b35bf3c5fa47db9d1bde4e42f26a.png)
cyclopropanemethanol | molar mass
Result
![Find the molar mass, M, for cyclopropanemethanol: 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_3H_5CH_2OH Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 4 H (hydrogen) | 8 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) | 8 | 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) | 4 | 12.011 | 4 × 12.011 = 48.044 H (hydrogen) | 8 | 1.008 | 8 × 1.008 = 8.064 O (oxygen) | 1 | 15.999 | 1 × 15.999 = 15.999 M = 48.044 g/mol + 8.064 g/mol + 15.999 g/mol = 72.107 g/mol](../image_source/fd83e6ec7b780659a4409e3747e4f86d.png)
Find the molar mass, M, for cyclopropanemethanol: 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_3H_5CH_2OH Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 4 H (hydrogen) | 8 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) | 8 | 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) | 4 | 12.011 | 4 × 12.011 = 48.044 H (hydrogen) | 8 | 1.008 | 8 × 1.008 = 8.064 O (oxygen) | 1 | 15.999 | 1 × 15.999 = 15.999 M = 48.044 g/mol + 8.064 g/mol + 15.999 g/mol = 72.107 g/mol
Unit conversion
![0.07211 kg/mol (kilograms per mole)](../image_source/e93fcdd610772a70fe009639fd0ab977.png)
0.07211 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.1 ≈ 1/10 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/0722b8cf86ddba33b79c0d454299e94b.png)
≈ ( 0.1 ≈ 1/10 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.37 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/4062a71574459e7543e588f51dc03d4b.png)
≈ 0.37 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 1.2 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/80a6f40ab0a08d83c1c525856389a8f3.png)
≈ 1.2 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 1.2×10^-22 grams | 1.2×10^-25 kg (kilograms) | 72 u (unified atomic mass units) | 72 Da (daltons)](../image_source/b27822b505af0730602d963942991871.png)
Mass of a molecule m from m = M/N_A: | 1.2×10^-22 grams | 1.2×10^-25 kg (kilograms) | 72 u (unified atomic mass units) | 72 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 72](../image_source/ae986c36079cd2d829c6667aa3af17ea.png)
Relative molecular mass M_r from M_r = M_u/M: | 72