# What mass of #TiCl_4# is needed to produce 25.0 g of #Ti# if the reaction proceeds with an 82% yield in the reaction #TiCl_4 + 2Mg -> Ti + 2MgCl_2#?

##### 1 Answer

You need 121 g of

#### Explanation:

**1. Write the balanced equation**

The balanced equation is

**2. Calculate the theoretical amount of Ti**

An 82 % yield means that we get 82 g of product from a theoretical value of 100 g.

∴

We must plan to get 30.5 g of

**3. Calculate the moles of #"Ti"#**

**4. Calculate the moles of #"TiCl"_4#**

**5. Calculate the mass of #"TiCl"_4#**