If 3.011 x 1023 molecules have a mass of 20.04 grams, what is the molar mass of this substance?

The molar mass of the substance will be 40.08 g.

Explanation:

It is given that molecules of any substance has a mass of 20.04 g.

Now, the number of moles of a substance can be calculated as,

The value of Avogadro's number is .

So, the number of moles of the substance will be,

Now, the molar mass of the substance will be,

Therefore, the molar mass of the substance will be 40.08 g.

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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.

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.