Question

How many particles would one formula unit of MgB r 2 produce when dissolved in solution?

Answer 1

One formula unit of MgBr2, when dissolved in solution, dissociates into one Mg2+ ion and two Br- ions, resulting in a total of three particles.

Step-by-step explanation:

When one formula unit of MgBr2 (magnesium bromide) is dissolved in solution, it dissociates into one Mg2+ ion and two Br- ions. Therefore, the dissolution of one formula unit of MgBr2 would produce a total of three particles in solution: one magnesium ion (Mg2+) and two bromide ions (Br-).

This concept is part of stoichiometry, which deals with the quantitative relationships between the amounts of reactants and products in chemical reactions. It is a fundamental concept within chemistry that helps predict the outcomes of reactions and the quantities of substances involved.

Answer 2

Magnesium bromide is an ionic compound, which when dissolved in water would completely ionize to give the magnesium and bromide ions as per the reaction,

`MgBr_(2) (aq)---->Mg^(2+)(aq)+2Br^(-)(aq)`

Each unit of magnesium bromide gives one magnesium ion,
`Mg^(2+)` and two bromide ions,
`Br^(-)`.

So a total of three ions(particles) would be liberated when one formula unit of magnesium bromide is dissolved in water.