Suppose you add x liters of pure water to the 10 L of 25% acid solution. The new solution's volume is x + 10 L. Each L of pure water contributes no acid, while the starting solution contains 2.5 L of acid. So in the new solution, you end up with a concentration of (2.5 L)/(x + 10 L), and you want this concentration to be 10%. So we have
and so you would need to add 15 L of pure water to get the desired concentration of acid.
Answer:
See Explanation
Step-by-step explanation:
<em>The question is incomplete because the area of the parallelogram is missing. However, the following will guide you in answering the question</em>
Given
Required
Determine the Height
Area of a Parallelogram is:
Make Height the subject
Substitute 16 for Base
This implies that you divide the value of area by 16 to get the height of the parallelogram.
Take for instance;
The height would be
Or
The height would be