What is the mass of 0.500 moles of chlorine gas?

m = 17.5 g Cl

Explanation: To find the mass of Cl we will need to convert the moles of Cl to mass using the relationship of 1 mole = molar mass of Cl.

0.500 mole Cl x 35 g Cl / 1 mole Cl

= 17. 5 g Cl

56 moles of   lieter in chemistry

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.