Question 2 (2points) How much water do you need to add to 19.4 moles of ammonia crystals to create a 2.4 molar solution? __ L (Answer uning 2 significant figures) Blank 1 square

## Step 1<br />The problem involves the concept of molarity in chemistry. Molarity (M) is defined as the number of moles of solute divided by the volume of the solution in liters. The formula for molarity is:<br /><br />### \(M = \frac{moles\,of\,solute}{volume\,of\,solution\,in\,liters}\)<br /><br />## Step 2<br />We are given the molarity (M), the number of moles of solute (n), and we need to find the volume of the solution (V). We can rearrange the molarity formula to solve for volume:<br /><br />### \(V = \frac{n}{M}\)<br /><br />## Step 3<br />Substitute the given values into the formula:<br /><br />### \(V = \frac{19.4\,moles}{2.4\,M}\)<br /><br />## Step 4<br />Calculate the volume:<br /><br />### \(V = 8.083333333333334\,liters\)<br /><br />## Step 5<br />The problem asks for the answer using 2 significant figures. Therefore, we round the calculated volume to 2 significant figures.<br /><br />### \(V = 8.1\,liters\)