For a sample of 0,2 moles of magnesium bromide,calculate the number of mole of Mg ion
To calculate the number of moles of Mg ion in a sample of magnesium bromide, we need to consider the molar ratio between magnesium bromide and the magnesium ion.
The chemical formula for magnesium bromide is MgBr2, which indicates that each molecule of magnesium bromide contains one magnesium ion (Mg2+) and two bromide ions (Br-).
Since we are given the sample size in moles of magnesium bromide, we can assume that the molar ratio remains constant. Therefore, for every mole of magnesium bromide (MgBr2), we have one mole of magnesium ions (Mg2+).
Given that we have 0.2 moles of magnesium bromide, we can conclude that there are also 0.2 moles of magnesium ions present in the sample.
So, the number of moles of Mg ion in the sample of 0.2 moles of magnesium bromide is also 0.2 moles.
Mg++ and 2 Br- is MgBr2
so 0.2