Input interpretation
![chlorine trifluoride | molar mass](../image_source/12a7b30864585e6b1a127bfc307c9548.png)
chlorine trifluoride | molar mass
Result
![Find the molar mass, M, for chlorine trifluoride: 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: ClF_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Cl (chlorine) | 1 F (fluorine) | 3 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) Cl (chlorine) | 1 | 35.45 F (fluorine) | 3 | 18.998403163 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) Cl (chlorine) | 1 | 35.45 | 1 × 35.45 = 35.45 F (fluorine) | 3 | 18.998403163 | 3 × 18.998403163 = 56.995209489 M = 35.45 g/mol + 56.995209489 g/mol = 92.45 g/mol](../image_source/56fee0297f371f7cecec911ba7e675ec.png)
Find the molar mass, M, for chlorine trifluoride: 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: ClF_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Cl (chlorine) | 1 F (fluorine) | 3 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) Cl (chlorine) | 1 | 35.45 F (fluorine) | 3 | 18.998403163 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) Cl (chlorine) | 1 | 35.45 | 1 × 35.45 = 35.45 F (fluorine) | 3 | 18.998403163 | 3 × 18.998403163 = 56.995209489 M = 35.45 g/mol + 56.995209489 g/mol = 92.45 g/mol
Unit conversion
![0.09245 kg/mol (kilograms per mole)](../image_source/0d3921c5da4b997a2285f7aa512c0682.png)
0.09245 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.13 ≈ 1/8 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/45166677d323aeeb71b41717298966af.png)
≈ ( 0.13 ≈ 1/8 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.48 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/d0d7da35af22dc48251922deda8b62ed.png)
≈ 0.48 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 1.6 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/caf8bc62d494756facab6e30f7fd7937.png)
≈ 1.6 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 1.5×10^-22 grams | 1.5×10^-25 kg (kilograms) | 92 u (unified atomic mass units) | 92 Da (daltons)](../image_source/b2117ec6cf91b930fc36f33109c5330e.png)
Mass of a molecule m from m = M/N_A: | 1.5×10^-22 grams | 1.5×10^-25 kg (kilograms) | 92 u (unified atomic mass units) | 92 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 92](../image_source/339e4d028f5438a53b596f4cc1029032.png)
Relative molecular mass M_r from M_r = M_u/M: | 92