# How many #Mg^(2+)# ions are present in 3.00 moles of #MgCl_2#?

##### 1 Answer

Aug 6, 2018

#### Explanation:

**Step 1:**

From the formula

- In 1 mol of
#MgCl_2# , there's 1 mol of#Mg^(2+)#

We can use this relationship to calculate the moles of

**Step 2:**

Once we find the moles of

- 1 mol
#Mg^(2+)# has#6.022# x#10^23# #Mg^(2+) "ions"#

**Combining the 2 steps calculations:**