Input interpretation
![magnesium molybdate | molar mass](../image_source/f19d0f6d6af5ce4250f11b2d283a6337.png)
magnesium molybdate | molar mass
Result
![Find the molar mass, M, for magnesium molybdate: 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: MgMoO_4 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Mg (magnesium) | 1 Mo (molybdenum) | 1 O (oxygen) | 4 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) Mg (magnesium) | 1 | 24.305 Mo (molybdenum) | 1 | 95.95 O (oxygen) | 4 | 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) Mg (magnesium) | 1 | 24.305 | 1 × 24.305 = 24.305 Mo (molybdenum) | 1 | 95.95 | 1 × 95.95 = 95.95 O (oxygen) | 4 | 15.999 | 4 × 15.999 = 63.996 M = 24.305 g/mol + 95.95 g/mol + 63.996 g/mol = 184.25 g/mol](../image_source/0b63ea0488256aa52c33b60cc2fa5f49.png)
Find the molar mass, M, for magnesium molybdate: 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: MgMoO_4 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i Mg (magnesium) | 1 Mo (molybdenum) | 1 O (oxygen) | 4 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) Mg (magnesium) | 1 | 24.305 Mo (molybdenum) | 1 | 95.95 O (oxygen) | 4 | 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) Mg (magnesium) | 1 | 24.305 | 1 × 24.305 = 24.305 Mo (molybdenum) | 1 | 95.95 | 1 × 95.95 = 95.95 O (oxygen) | 4 | 15.999 | 4 × 15.999 = 63.996 M = 24.305 g/mol + 95.95 g/mol + 63.996 g/mol = 184.25 g/mol
Unit conversion
![0.1843 kg/mol (kilograms per mole)](../image_source/0ad0fc6b2091bbf0df490f1056d51e44.png)
0.1843 kg/mol (kilograms per mole)
Comparisons
![≈ 0.26 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/9c773362d2febee955ef36020b9aceb7.png)
≈ 0.26 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.95 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/c6126bcfb94e6617755454abc55f5462.png)
≈ 0.95 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 3.2 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/bd2efff54ddd804252ff2057c4aade27.png)
≈ 3.2 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 3.1×10^-22 grams | 3.1×10^-25 kg (kilograms) | 184 u (unified atomic mass units) | 184 Da (daltons)](../image_source/b7fcdf7db7c21b7963ecf15de869e29b.png)
Mass of a molecule m from m = M/N_A: | 3.1×10^-22 grams | 3.1×10^-25 kg (kilograms) | 184 u (unified atomic mass units) | 184 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 184](../image_source/b673768f53421e8588a1ffd233e5dcd7.png)
Relative molecular mass M_r from M_r = M_u/M: | 184