Input interpretation
![1-decene | molar mass](../image_source/a0ea674d4e26c016e6de0fad38c4ee68.png)
1-decene | molar mass
Result
![Find the molar mass, M, for 1-decene: 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(CH_2)_7CH=CH_2 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 10 H (hydrogen) | 20 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) | 10 | 12.011 H (hydrogen) | 20 | 1.008 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) | 10 | 12.011 | 10 × 12.011 = 120.110 H (hydrogen) | 20 | 1.008 | 20 × 1.008 = 20.160 M = 120.110 g/mol + 20.160 g/mol = 140.270 g/mol](../image_source/2a96f65322df5066fcb35ebb823b22cc.png)
Find the molar mass, M, for 1-decene: 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(CH_2)_7CH=CH_2 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 10 H (hydrogen) | 20 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) | 10 | 12.011 H (hydrogen) | 20 | 1.008 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) | 10 | 12.011 | 10 × 12.011 = 120.110 H (hydrogen) | 20 | 1.008 | 20 × 1.008 = 20.160 M = 120.110 g/mol + 20.160 g/mol = 140.270 g/mol
Unit conversion
![0.14027 kg/mol (kilograms per mole)](../image_source/5b92957cd04b2d027c797f16463e98bf.png)
0.14027 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.19 ≈ 1/5 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/57562e7877d5960ca5a7431cd593d5a2.png)
≈ ( 0.19 ≈ 1/5 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.72 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/72ca5459e6cca5d4c56fe8932be55bef.png)
≈ 0.72 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 2.4 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/6f5dcd144e84618fad69afdf3557d566.png)
≈ 2.4 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 2.3×10^-22 grams | 2.3×10^-25 kg (kilograms) | 140 u (unified atomic mass units) | 140 Da (daltons)](../image_source/8965ddfacea3ce6193bec9b6ca6b769d.png)
Mass of a molecule m from m = M/N_A: | 2.3×10^-22 grams | 2.3×10^-25 kg (kilograms) | 140 u (unified atomic mass units) | 140 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 140](../image_source/59c563f10d31991e606c900229b33733.png)
Relative molecular mass M_r from M_r = M_u/M: | 140