Final answer:
To convert from megagrams to moles, the molar mass of the substance is required, and since it's not provided, the conversion to moles cannot be completed. Generally, the conversion involves dividing the mass in grams by the molar mass of the substance.
Step-by-step explanation:
To convert from megagrams (Mg) to moles, first you need to establish the molar mass of the substance you're converting. Unfortunately, Mg here seems to be used to denote megagrams, and without specifying the substance, we cannot determine its molar mass and hence the conversion to moles. We need the molar mass like that of nitrogen (14 g/mol) or I2 (molar mass in the examples provided), which was used to convert from grams to moles in previous instances.
If we had the molar mass of the substance, the formula we would use looks as follows:
The mass in grams / Molar mass of the substance = Number of moles.
For example, with a molar mass of the substance as 176.124 g/mol, and 0.014 Mg (which is 14 grams), the conversion would be:
14 g / 176.124 g/mol = Number of moles.
Since the molar mass of the substance isn't specified, the conversion cannot be completed. In general, the process to find the number of moles involves dividing the mass of the substance (in grams) by its molar mass (in g/mol).