Answer:

Explanation:
= Initial volume = 100 mL
= Final volume = 1000 mL
= Initial concentration = 0.5 M
= Final concentration
We have the relation

The new concentration is
.
Answer:
B
Explanation:
I think that the anserw is B.
Answer:
The answer is "Option A"
Explanation:
At 3300 cm-1, the wide region is equal to OH. It is a possible group of alcoholic features that includes drugs. In the given choices option a is correct that's the structure can be defined in attachment file please find it, and the wrong choice can be defined as follows:
- In choice B, It is wrong because it doesn't include OH.
- In choice C, it uses the triple bond, that's why it is wrong.
- In choice D, it uses the two bonds, that's why it is wrong.
- In choice E, it uses the characteristic bond, that's why it is wrong.