Average atomic mass of magnesium is 24.31amu. The magnesium is composed of 79mole % of 24Mg and remaining 21 mole% of 25Mg and 26Mg. Calculate mole%of 26 Mg
To calculate the mole percent of 26Mg in magnesium, we first need to find the mole percent of 25Mg, as the sum of the mole percent of 24Mg, 25Mg, and 26Mg should add up to 100.
Given that the magnesium is composed of 79 mole percent of 24Mg, we can calculate the mole percent of 25Mg as follows:
Mole percent of 25Mg = (100 - 79) = 21 mole percent
Now, to find the mole percent of 26Mg, we subtract the mole percent of 24Mg and 25Mg from 100:
Mole percent of 26Mg = 100 - (mole percent of 24Mg + mole percent of 25Mg)
Mole percent of 26Mg = 100 - (79 + 21) = 100 - 100 = 0 mole percent
Therefore, the mole percent of 26Mg in magnesium is 0%.