Search

molar mass of potassium iodate

Input interpretation

potassium iodate | molar mass
potassium iodate | molar mass

Result

Find the molar mass, M, for potassium iodate: 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: KIO_3 Use the chemical formula to count the number of atoms, N_i, for each element:  | N_i  I (iodine) | 1  K (potassium) | 1  O (oxygen) | 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)  I (iodine) | 1 | 126.90447  K (potassium) | 1 | 39.0983  O (oxygen) | 3 | 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)  I (iodine) | 1 | 126.90447 | 1 × 126.90447 = 126.90447  K (potassium) | 1 | 39.0983 | 1 × 39.0983 = 39.0983  O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997  M = 126.90447 g/mol + 39.0983 g/mol + 47.997 g/mol = 214.000 g/mol
Find the molar mass, M, for potassium iodate: 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: KIO_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i I (iodine) | 1 K (potassium) | 1 O (oxygen) | 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) I (iodine) | 1 | 126.90447 K (potassium) | 1 | 39.0983 O (oxygen) | 3 | 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) I (iodine) | 1 | 126.90447 | 1 × 126.90447 = 126.90447 K (potassium) | 1 | 39.0983 | 1 × 39.0983 = 39.0983 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 M = 126.90447 g/mol + 39.0983 g/mol + 47.997 g/mol = 214.000 g/mol

Unit conversion

0.214 kg/mol (kilograms per mole)
0.214 kg/mol (kilograms per mole)

Comparisons

 ≈ 0.3 × molar mass of fullerene ( ≈ 721 g/mol )
≈ 0.3 × molar mass of fullerene ( ≈ 721 g/mol )
 ≈ 1.1 × molar mass of caffeine ( ≈ 194 g/mol )
≈ 1.1 × molar mass of caffeine ( ≈ 194 g/mol )
 ≈ 3.7 × molar mass of sodium chloride ( ≈ 58 g/mol )
≈ 3.7 × molar mass of sodium chloride ( ≈ 58 g/mol )

Corresponding quantities

Mass of a molecule m from m = M/N_A:  | 3.6×10^-22 grams  | 3.6×10^-25 kg (kilograms)  | 214 u (unified atomic mass units)  | 214 Da (daltons)
Mass of a molecule m from m = M/N_A: | 3.6×10^-22 grams | 3.6×10^-25 kg (kilograms) | 214 u (unified atomic mass units) | 214 Da (daltons)
Relative molecular mass M_r from M_r = M_u/M:  | 214
Relative molecular mass M_r from M_r = M_u/M: | 214