Question

our goal is to measure the concentration of contaminants in the flint water source. so far, we know two things:

• the more solute that is present in a particular amount of solution, the more concentrated that solution will be.
• the flint water source seems to have high levels of solutes such as lead and copper.

but how can we measure \how high\ the concentration of a substance is?
on the surface, measuring concentration should be simple. just count how many particles of solute are present in a particular amount of liquid. lets say both of these samples are 1 ml.
fill in the number of particles to find the concentration of the solution.

Explanation:

Step1: Count the number of particles in the "LESS CONCENTRATED" solution

By visually counting the pink particles in the left - hand circle (labeled "LESS CONCENTRATED"), we can see that there are 5 particles.

Step2: Count the number of particles in the "MORE CONCENTRATED" solution

By visually counting the pink particles in the right - hand circle (labeled "MORE CONCENTRATED"), we can see that there are 13 particles.

Answer:

The "LESS CONCENTRATED" solution has 5 particles and the "MORE CONCENTRATED" solution has 13 particles.