How much water would I need to add to 700 mL of a 2.7 M KCl solution to make a 1.0 M solution?

Explanation:

= Initial Concentration of KCl = 2.7 M

= Volume of KCl = 1 M

= Final concentration of KCl = 1 M

= Amount of water

We have the relation

The amount of water that is to be added is .

explanation:

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.