What is the total volume in ml of a 1:5 w/v solution made from 20 grams of solute?

To determine the total volume of a 1:5 w/v (weight/volume) solution made from 20 grams of solute, it’s important to first understand what a 1:5 w/v solution means. A 1:5 w/v solution indicates that there is 1 gram of solute for every 5 milliliters of solution.

In this case, with 20 grams of solute, we can set up a proportion based on the definition of the w/v ratio. Since it's a 1:5 ratio, you can conclude that for every 1 gram of solute, the total volume of the solution will be 5 mL. Therefore, for 20 grams of solute, you would calculate the total volume as follows:

Total volume = 20 grams of solute × (5 mL / 1 gram of solute) = 100 mL.

Thus, the total volume of the 1:5 w/v solution created from 20 grams of solute is indeed 100 mL. This matches the understanding of how to manipulate weight-to-volume ratios and provides the correct calculation for the total volume of the solution.