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Answer:
Take 5 ml of dye and add 3 ml of water
Thus,
The total volume of solution becomes = 8 mL
now,
This solution of 8 mL contains part of dye and
part of water.
Next step is to take out 2 mL of solution
thus,
Volume of dye in 2 mL solution =
or
Volume of dye in 2 mL solution = 1.25 mL
hence,
the 1.25 mL dye is measured.
Step-by-step explanation:
Given:
10-mL graduate calibrated in 1-mL units
dye solution to be measured = 1.25 mL
Now,
take 5 ml of dye and add 3 ml of water
Thus,
The total volume of solution becomes = 8 mL
now,
This solution of 8 mL contains part of dye and
part of water.
Next step is to take out 2 mL of solution
thus,
Volume of dye in 2 mL solution =
or
Volume of dye in 2 mL solution = 1.25 mL
hence,
the 1.25 mL dye is measured.