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german
2 months ago
5

A scientist makes an acid solution by adding drops of acid to 1.2 l of water. the final volume of the acid solution is 1.202 l.

assuming the volume of each drop is 0.05​ ml, how many drops were added to the​ water? about what percent of the acid solution is​ acid?
Chemistry
1 answer:
KiRa [2.9K]2 months ago
5 0

Result: 40 drops, and the acid percentage in the solution is 0.166%.

Details: Acid is gradually mixed into 1.2 L of water to create the acidic solution. The total volume after mixing is 1.202 L. We can ascertain the amount of acid added to the water by subtracting the initial water volume from the final volume as follows:

volume of acid added = 1.202 L - 1.2 L = 0.002 L

Each drop has a volume of 0.05 mL. Let's convert the added acid volume from liters to milliliters.

0.002L(\frac{1000mL}{1L})

= 2 mL

Next, we calculate the total number of drops of acid added as follows:

2mL(\frac{1drop}{0.05mL})

= 40 drops

With 0.002 L of acid in 1.202 L of solution, we need to determine the percentage concentration of acid. This amounts to how many liters of acid would exist in 100 L of acid solution. We can express this as:

percentage of acid in solution = (\frac{0.002}{1.202})100

= 0.166%

Thus, 40 drops of acid are needed, indicating the acid solution contains 0.166% acid.


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