What is the mass of 0.513 mol Al2O3? Give your
answer to the correct number of significant
figures. (Molar mass of Al2O3 = 102.0 g/mol)
0.513 mol Al2O3 = |
g Al2O3

52.3

Explanation:

52.3

Explanation:

You would need to take the given number of moles and multiply by the molar mass, so

0.513 mol Al2O3 (102.0g Al2O3/1 mol Al2O3) = 52.326

Since you're only given 3 sig figs, you report your answer with 3 sig figs.

catya your not at all which answer i've seen you do this on another question!

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.