Input interpretation
![2, 4-dicyclohexyl-2-methylpentane | molar mass](../image_source/aab773627fc3a85831a134be4195ba39.png)
2, 4-dicyclohexyl-2-methylpentane | molar mass
Result
![Find the molar mass, M, for 2, 4-dicyclohexyl-2-methylpentane: 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_11CH(CH_3)CH_2C(CH_3)_2C_6H_11 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 18 H (hydrogen) | 34 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) | 18 | 12.011 H (hydrogen) | 34 | 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) | 18 | 12.011 | 18 × 12.011 = 216.198 H (hydrogen) | 34 | 1.008 | 34 × 1.008 = 34.272 M = 216.198 g/mol + 34.272 g/mol = 250.470 g/mol](../image_source/84e24aca8aa4e8210bf389b285dae0a0.png)
Find the molar mass, M, for 2, 4-dicyclohexyl-2-methylpentane: 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_11CH(CH_3)CH_2C(CH_3)_2C_6H_11 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 18 H (hydrogen) | 34 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) | 18 | 12.011 H (hydrogen) | 34 | 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) | 18 | 12.011 | 18 × 12.011 = 216.198 H (hydrogen) | 34 | 1.008 | 34 × 1.008 = 34.272 M = 216.198 g/mol + 34.272 g/mol = 250.470 g/mol
Unit conversion
![0.25047 kg/mol (kilograms per mole)](../image_source/86f426e44d4394eac98e09925c56709b.png)
0.25047 kg/mol (kilograms per mole)
Comparisons
![≈ 0.35 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/ff14977e9bc25e09ffd26b5e5d44e894.png)
≈ 0.35 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 1.3 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/27dfdaba468616ef1f5f1f582d6fe85f.png)
≈ 1.3 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 4.3 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/7d8f2c9898c6e0eb4e86b85eba2cc20f.png)
≈ 4.3 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 4.2×10^-22 grams | 4.2×10^-25 kg (kilograms) | 250 u (unified atomic mass units) | 250 Da (daltons)](../image_source/5182e87217cd2e252f00d74d8db6f7b1.png)
Mass of a molecule m from m = M/N_A: | 4.2×10^-22 grams | 4.2×10^-25 kg (kilograms) | 250 u (unified atomic mass units) | 250 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 250](../image_source/2aaab9822f5e3fcd3ff41dcb7b207284.png)
Relative molecular mass M_r from M_r = M_u/M: | 250