Question

A 200 mg/dl solution was diluted 1:10. This diluted solution was then additionally diluted 1:5. What us the concentration of the final dilution?
bobpursley
Isn't it diluted by a factor of 50?
The resulting concentration is 1/10 x 1/5 = 1/50 of the original. That would be 4 mg/dl
1/10x1/5= 1/50
200/50= 4

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