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Question 7 1 pts If you added 0.9 ml: of an unknown substance and created a dilution of 4% in a 5 mL tube, what is the original concentration of the substance? A. 22.2% B. 12.6 % C. 100% D. 1%
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19 votes
19 votes
Question 7

1 pts
If you added 0.9 ml: of an unknown substance and created a dilution of 4% in
a 5 mL tube, what is the original concentration of the substance?
A. 22.2%
B. 12.6 %
C. 100%
D. 1%

User Papagaga
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2.7k points

1 Answer

6 votes
6 votes
Try letter A that should be correct
User Aposhian
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