Input interpretation
![zinc p-toluenesulfonate hydrate | molar mass](../image_source/94d9074be2f720ade752bda0b7c8062e.png)
zinc p-toluenesulfonate hydrate | molar mass
Result
![Find the molar mass, M, for zinc p-toluenesulfonate hydrate: 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_3C_6H_4SO_3)_2Zn·xH_2O Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 14 H (hydrogen) | 16 O (oxygen) | 7 S (sulfur) | 2 Zn (zinc) | 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) | 14 | 12.011 H (hydrogen) | 16 | 1.008 O (oxygen) | 7 | 15.999 S (sulfur) | 2 | 32.06 Zn (zinc) | 1 | 65.38 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) | 14 | 12.011 | 14 × 12.011 = 168.154 H (hydrogen) | 16 | 1.008 | 16 × 1.008 = 16.128 O (oxygen) | 7 | 15.999 | 7 × 15.999 = 111.993 S (sulfur) | 2 | 32.06 | 2 × 32.06 = 64.12 Zn (zinc) | 1 | 65.38 | 1 × 65.38 = 65.38 M = 168.154 g/mol + 16.128 g/mol + 111.993 g/mol + 64.12 g/mol + 65.38 g/mol = 425.78 g/mol](../image_source/24d1a1897157b5ac77114b95b7eddceb.png)
Find the molar mass, M, for zinc p-toluenesulfonate hydrate: 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_3C_6H_4SO_3)_2Zn·xH_2O Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 14 H (hydrogen) | 16 O (oxygen) | 7 S (sulfur) | 2 Zn (zinc) | 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) | 14 | 12.011 H (hydrogen) | 16 | 1.008 O (oxygen) | 7 | 15.999 S (sulfur) | 2 | 32.06 Zn (zinc) | 1 | 65.38 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) | 14 | 12.011 | 14 × 12.011 = 168.154 H (hydrogen) | 16 | 1.008 | 16 × 1.008 = 16.128 O (oxygen) | 7 | 15.999 | 7 × 15.999 = 111.993 S (sulfur) | 2 | 32.06 | 2 × 32.06 = 64.12 Zn (zinc) | 1 | 65.38 | 1 × 65.38 = 65.38 M = 168.154 g/mol + 16.128 g/mol + 111.993 g/mol + 64.12 g/mol + 65.38 g/mol = 425.78 g/mol
Unit conversion
![0.4258 kg/mol (kilograms per mole)](../image_source/4da0ea85abcf8f6ec3f897025fec9410.png)
0.4258 kg/mol (kilograms per mole)
Comparisons
![≈ 0.59 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/d6ad5a52f608a972841df1b71752afe6.png)
≈ 0.59 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 2.2 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/2664b43af72555bcbac858349807a25e.png)
≈ 2.2 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 7.3 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/55ca9204a6c40bc6f51a510b855f036a.png)
≈ 7.3 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 7.1×10^-22 grams | 7.1×10^-25 kg (kilograms) | 426 u (unified atomic mass units) | 426 Da (daltons)](../image_source/2d047a0f1943d08156a89a879ac595ee.png)
Mass of a molecule m from m = M/N_A: | 7.1×10^-22 grams | 7.1×10^-25 kg (kilograms) | 426 u (unified atomic mass units) | 426 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 426](../image_source/a718ff5241f227e5908ea0a0efdf6a8a.png)
Relative molecular mass M_r from M_r = M_u/M: | 426