Suppose a 2% acid solution is mixed with a 3% acid solution. Find the percent of acid in each mixture.

-a mixture that contains an equal amount of 2% acid solution and 3% acid solution
-a mixture that contains 3 times more 2% acid solution than 3% acid solution

.02*V+.03V=2V*percent

percent= 2.5

.02*3V+.03V=4V*percent
percent= (.06+.03)/4=9/4 percent or 2.25 percent

To solve this problem, we need to understand the concept of mixing solutions with different concentrations.

In the given problem, we have a 2% acid solution and a 3% acid solution. Let's assume that we have 1 unit of each solution.

For the first scenario, where we have an equal amount of both solutions, we can add 1 unit of the 2% acid solution to 1 unit of the 3% acid solution. This will give us a total of 2 units of the mixture.

To find the percent of acid in this mixture, we need to calculate the total amount of acid in the mixture and express it as a percentage of the total volume.

The total amount of acid in the mixture is calculated by multiplying the concentration of the acid with the volume of the solution. For the 2% acid solution, we have 2% * 1 unit = 0.02 units of acid. Similarly, for the 3% acid solution, we have 3% * 1 unit = 0.03 units of acid.

The total amount of acid in the mixture is 0.02 units + 0.03 units = 0.05 units.

To find the percent of acid in the mixture, we divide the total amount of acid by the total volume of the mixture and multiply by 100.

Percent of acid in the mixture = (0.05 units / 2 units) * 100% = 2.5%

Therefore, the mixture that contains an equal amount of 2% acid solution and 3% acid solution will have a percent of acid equal to 2.5%.

For the second scenario, where we have 3 times more of the 2% acid solution compared to the 3% acid solution, let's assume we have 3 units of the 2% acid solution and 1 unit of the 3% acid solution.

To calculate the total volume of the mixture, we add the volumes of the individual solutions, which gives us 3 units + 1 unit = 4 units of the mixture.

To find the percent of acid in this mixture, we follow the same process as before.

For the 2% acid solution, we have 2% * 3 units = 0.06 units of acid.
For the 3% acid solution, we have 3% * 1 unit = 0.03 units of acid.

The total amount of acid in the mixture is 0.06 units + 0.03 units = 0.09 units.

Percent of acid in the mixture = (0.09 units / 4 units) * 100% = 2.25%

Therefore, the mixture that contains 3 times more 2% acid solution than 3% acid solution will have a percent of acid equal to 2.25%.