Register
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%
84.0k views
5 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 Jo Sprague
by
6.7k points

1 Answer

0 votes
Try letter A that should be correct
User Flaashing
by
6.6k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.8m questions

10.5m answers

Other Questions

Which of the objects is living or nonliving: Bacteria, virus, moss, you, a lemon seed, the air, bread, lettuce and rocks?
Why aren't all minerals gemstones?
What are three important types of forces
How can paleontologists help us understand the past
What is the phenotype of a heterozygous person using T for tall and t for short
Link Copied!