Input interpretation
![1, 2, 3, 4, 5-pentaphenyl-1, 3-cyclopentadiene | molar mass](../image_source/a808232823a66d744271cfb197d153ee.png)
1, 2, 3, 4, 5-pentaphenyl-1, 3-cyclopentadiene | molar mass
Result
![Find the molar mass, M, for 1, 2, 3, 4, 5-pentaphenyl-1, 3-cyclopentadiene: 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_35H_26 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 35 H (hydrogen) | 26 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) | 35 | 12.011 H (hydrogen) | 26 | 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) | 35 | 12.011 | 35 × 12.011 = 420.385 H (hydrogen) | 26 | 1.008 | 26 × 1.008 = 26.208 M = 420.385 g/mol + 26.208 g/mol = 446.593 g/mol](../image_source/2d09f642c51db741a7509d98d841e3a8.png)
Find the molar mass, M, for 1, 2, 3, 4, 5-pentaphenyl-1, 3-cyclopentadiene: 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_35H_26 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 35 H (hydrogen) | 26 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) | 35 | 12.011 H (hydrogen) | 26 | 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) | 35 | 12.011 | 35 × 12.011 = 420.385 H (hydrogen) | 26 | 1.008 | 26 × 1.008 = 26.208 M = 420.385 g/mol + 26.208 g/mol = 446.593 g/mol
Unit conversion
![0.4466 kg/mol (kilograms per mole)](../image_source/23957d023755467428186f557593b54e.png)
0.4466 kg/mol (kilograms per mole)
Comparisons
![≈ 0.62 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/fd8995557cc70dd1c23039dad1af4ba1.png)
≈ 0.62 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 2.3 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/704e88c569665224e2384f6bcbe93b44.png)
≈ 2.3 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 7.6 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/4d863462620634f341724526eabb06d2.png)
≈ 7.6 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 7.4×10^-22 grams | 7.4×10^-25 kg (kilograms) | 447 u (unified atomic mass units) | 447 Da (daltons)](../image_source/f77ffede66661f232566bb58be941592.png)
Mass of a molecule m from m = M/N_A: | 7.4×10^-22 grams | 7.4×10^-25 kg (kilograms) | 447 u (unified atomic mass units) | 447 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 447](../image_source/a0f9e4b9bad03204af64fa4aa60f7ca6.png)
Relative molecular mass M_r from M_r = M_u/M: | 447