Input interpretation
![hydroxylamine | molar mass](../image_source/7117521e2ead58c178a06058ba477403.png)
hydroxylamine | molar mass
Result
![Find the molar mass, M, for hydroxylamine: 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: NH_2OH Use the chemical formula to count the number of atoms, N_i, for each element: | N_i H (hydrogen) | 3 N (nitrogen) | 1 O (oxygen) | 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) H (hydrogen) | 3 | 1.008 N (nitrogen) | 1 | 14.007 O (oxygen) | 1 | 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) H (hydrogen) | 3 | 1.008 | 3 × 1.008 = 3.024 N (nitrogen) | 1 | 14.007 | 1 × 14.007 = 14.007 O (oxygen) | 1 | 15.999 | 1 × 15.999 = 15.999 M = 3.024 g/mol + 14.007 g/mol + 15.999 g/mol = 33.030 g/mol](../image_source/61d68e15ca7809f47e1f111100fb0480.png)
Find the molar mass, M, for hydroxylamine: 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: NH_2OH Use the chemical formula to count the number of atoms, N_i, for each element: | N_i H (hydrogen) | 3 N (nitrogen) | 1 O (oxygen) | 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) H (hydrogen) | 3 | 1.008 N (nitrogen) | 1 | 14.007 O (oxygen) | 1 | 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) H (hydrogen) | 3 | 1.008 | 3 × 1.008 = 3.024 N (nitrogen) | 1 | 14.007 | 1 × 14.007 = 14.007 O (oxygen) | 1 | 15.999 | 1 × 15.999 = 15.999 M = 3.024 g/mol + 14.007 g/mol + 15.999 g/mol = 33.030 g/mol
Unit conversion
![0.03303 kg/mol (kilograms per mole)](../image_source/7d7995047836daf2af49dbbc633f4ef4.png)
0.03303 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.17 ≈ 1/6 ) × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/07e7ee420e1247fa13550d382a4a7b02.png)
≈ ( 0.17 ≈ 1/6 ) × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 0.57 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/b764810c6fe2a71f01d3f7ca6226819e.png)
≈ 0.57 × molar mass of sodium chloride ( ≈ 58 g/mol )
![≈ 1.8 × molar mass of water ( ≈ 18 g/mol )](../image_source/c2937ed7138f9702b6f5d3706687a5c2.png)
≈ 1.8 × molar mass of water ( ≈ 18 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 5.5×10^-23 grams | 5.5×10^-26 kg (kilograms) | 33 u (unified atomic mass units) | 33 Da (daltons)](../image_source/61e4c16678208ab92a8b19abd41e46f1.png)
Mass of a molecule m from m = M/N_A: | 5.5×10^-23 grams | 5.5×10^-26 kg (kilograms) | 33 u (unified atomic mass units) | 33 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 33](../image_source/555b9d04ea2e72196061cc9eafe7026e.png)
Relative molecular mass M_r from M_r = M_u/M: | 33