What volume of 0.100M of sodium trioxonitrate(v) contains 5g of a solute?(Na=23,N=14,O=16)

0.79L

Explanation:

From the question given, the following were obtained:

Molarity = 0.1M

Molar Mass of HNO3 = 1 + 14 + (16x3) = 1 + 14 + 48 = 63g/mol

Mass of HNO3 = 5g

Number of mole =?

Number of mole = Mass /Molar Mass

Number of mole of HNO3 = 5/63 = 0.079mole

Now we can obtain the volume of the solution as follows:

Molarity = 0.1M

Mole = 0.079mole

Volume =?

Molarity = mole/Volume

Volume = mole /Molarity

Volume = 0.079/0.1

Volume = 0.79L

3

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.