The gram formula mass for KI or potassium iodide is 166.0027 grams per mole. You find this mass by multiplying the atomic masses of potassium and iodine by the number of atoms given for each in the formula, and then adding these two results.
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The molar mass of potassium iodide (KI) is approximately 166 grams per mole. This is calculated by adding the atomic masses of potassium (39.1 g/mol) and iodine (126.9 g/mol) found in one mole of KI.
To calculate the mass of KI in the solution, first calculate the number of moles of KI present using the formula moles = Molarity x Volume (in liters). Then, use the molar mass of KI (potassium iodide) to convert moles to grams. The molar mass of KI is 166 g/mol.
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No, the molar mass does not differ in isoelectronic compounds. Isoelectronic compounds have the same number of electrons and therefore the same atomic mass, resulting in the same molar mass.