Input interpretation
![2-formyl-3, 4-dihydro-2H-pyran | molar mass](../image_source/f29d11573a5a27c48def25c23a57d263.png)
2-formyl-3, 4-dihydro-2H-pyran | molar mass
Result
![Find the molar mass, M, for 2-formyl-3, 4-dihydro-2H-pyran: 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_8O_2 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 6 H (hydrogen) | 8 O (oxygen) | 2 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) | 6 | 12.011 H (hydrogen) | 8 | 1.008 O (oxygen) | 2 | 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) | 6 | 12.011 | 6 × 12.011 = 72.066 H (hydrogen) | 8 | 1.008 | 8 × 1.008 = 8.064 O (oxygen) | 2 | 15.999 | 2 × 15.999 = 31.998 M = 72.066 g/mol + 8.064 g/mol + 31.998 g/mol = 112.128 g/mol](../image_source/2569fdbb968cf9941d2b7df3c593ba03.png)
Find the molar mass, M, for 2-formyl-3, 4-dihydro-2H-pyran: 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_8O_2 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 6 H (hydrogen) | 8 O (oxygen) | 2 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) | 6 | 12.011 H (hydrogen) | 8 | 1.008 O (oxygen) | 2 | 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) | 6 | 12.011 | 6 × 12.011 = 72.066 H (hydrogen) | 8 | 1.008 | 8 × 1.008 = 8.064 O (oxygen) | 2 | 15.999 | 2 × 15.999 = 31.998 M = 72.066 g/mol + 8.064 g/mol + 31.998 g/mol = 112.128 g/mol
Unit conversion
![0.11213 kg/mol (kilograms per mole)](../image_source/8e74c5e41e2a40604fd7b0930d0e3584.png)
0.11213 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.16 ≈ 1/6 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/f02c6a43c6e754a6103634a9293c0c21.png)
≈ ( 0.16 ≈ 1/6 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.58 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/7e01d1a4155ff7bbdae2ebae3c5473e0.png)
≈ 0.58 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 1.9 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/8b476b7816f3defb273efbbc3ba1021b.png)
≈ 1.9 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 1.9×10^-22 grams | 1.9×10^-25 kg (kilograms) | 112 u (unified atomic mass units) | 112 Da (daltons)](../image_source/0570e23bf1ce2807aac86630ea802467.png)
Mass of a molecule m from m = M/N_A: | 1.9×10^-22 grams | 1.9×10^-25 kg (kilograms) | 112 u (unified atomic mass units) | 112 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 112](../image_source/fe012d71422e5dcecd24e6cc87767973.png)
Relative molecular mass M_r from M_r = M_u/M: | 112