Questions: A 20% KCl solution should contain grams of KCl in milliliters of water.

Transcript text: A $20 \% \mathrm{KCl}$ solution should contain $\qquad$ grams of KCl in $\qquad$ milliliters of water.

Solution

Solution Steps

Step 1: Understanding the Problem

We need to determine the amount of KCl in grams and the volume of water in milliliters for a 20% KCl solution. A 20% solution means that 20% of the total weight of the solution is KCl.

Step 2: Calculating the Amount of KCl

For a 20% KCl solution:

20 grams of KCl in 100 milliliters of water
200 grams of KCl in 1000 milliliters of water
10 grams of KCl in 50 milliliters of water

Step 3: Verifying the Calculations

For 20 grams of KCl in 100 milliliters of water: \[ \frac{20 \, \text{grams}}{100 \, \text{milliliters}} = 0.20 \, \text{or} \, 20\% \]
For 200 grams of KCl in 1000 milliliters of water: \[ \frac{200 \, \text{grams}}{1000 \, \text{milliliters}} = 0.20 \, \text{or} \, 20\% \]
For 10 grams of KCl in 50 milliliters of water: \[ \frac{10 \, \text{grams}}{50 \, \text{milliliters}} = 0.20 \, \text{or} \, 20\% \]