Answer:
protein concentration [tex]= 2.5\times 10^{-5} mg/ml[/tex]
Explanation:
from the given information
total amount of protein is 0.025 mg
amount of dilute solution is [tex]25\mu L[/tex]
Therefore original concentration is given as
original concentration [tex]=\frac{0.025 mg}{25 \mu L} = 0.001 mg/\mu L[/tex]
[tex]= 0.001 mg/\mu L \times 25[/tex]
HERE 25 is dilution factor
[tex]= 0.025 mg/\mu L[/tex]
convert [tex]mg/\mu L\ to\ mg/ml = 0.025 mg/\mu\ L \times \frac{1}{10^3 \mu\ L}[/tex]
[tex]= 2.5\times 10^{-5} mg/ml[/tex]