What is the volume of solvent needed for the preparation of an equal 10% title solution when using 15 mL of solute?

I know 10 % w/w, or w/v, or v/v, but I do not know that a equal title solution is.

I'm wondering if Wallace meant "titer" or "titre"; however, I don't know what an equal titer is either.

Another person who posted his/her question from a phone -- and depended on auto-correct? Without proofreading before hitting that Submit button?

To calculate the volume of solvent needed for the preparation of a 10% solution, you first need to understand the definition of a percent solution. A percent solution expresses the amount (in parts) of solute dissolved in a given volume (in parts) of the solution.

In this case, a 10% solution means that 10 parts of solute are dissolved in 100 parts of the solution. Therefore, the ratio of solute to the solution is 10:100, which can be simplified to 1:10.

Given that you have 15 mL of solute and want to prepare an equal 10% solution, you can determine the total volume of the solution by dividing the volume of solute by the ratio of solute to solution:

Total volume of solution = volume of solute / (solute:solution ratio)

In this case, the solute is 15 mL, and the solute:solution ratio is 1:10.

Total volume of solution = 15 mL / (1:10)

To divide by a ratio, you multiply the numerator by the reciprocal of the ratio. The reciprocal of 1:10 is 10:1.

Total volume of solution = 15 mL × (10:1)

Multiply the numerator and denominator separately:

Total volume of solution = (15 mL × 10) / 1

Therefore, the total volume of the 10% solution you can prepare using 15 mL of solute is 150 mL.