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naomijamieson88
09.07.2019 •
Chemistry
Achemist needs 500.0 ml of a 1.500 m perchloric acid solution. the stockroom provides the chemist with 10.00 l of 15.75 m perchloric acid solution to prepare the required solution. calculate the volume of concentrated acid required.
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Ответ:
- 47.62 mL
Solution:- It is a dilution problem where we are asked to calculate the volume of 15.75 M perchloric acid solution required to make 500.0 mL of 1.500 M solution.
For solving this type of problems we use the dilution equation:
Where,
is the concentration of the concentrated solution and
is it's volume.
On rearranging this for
:
So, 47.62 mL of 15.75 M perchloric acid are required to make 500.0mL of 1.500 M solution.
Ответ: