# Question #c5bdc

##### 1 Answer

To calculate the percent yield of triphenylmethanol, you divide the actual yield by the theoretical yield and multiply by 100.

#### Explanation:

**EXAMPLE**

Assume that you prepared phenylmagnesium bromide by reacting 2.1 mL of bromobenzene (density 1.50 g/mL) with 0.50 g of magnesium in anhydrous ether. To this, you slowly added a solution of 2.4 g benzophenone in anhydrous ether. You obtained 2.6 g of triphenylmethanol. What was your percent yield?

**Solution**

The equations are (

**Calculate the limiting reactant** (all molar ratios are 1:1).

Since benzophenone has the fewest moles, it is the limiting reactant. It will form 0.013 mol of triphenylmethanol.

**Calculate the theoretical yield**.

The molar mass of

**Calculate the percent yield**.