107k views
0 votes
Determine the mass of 7.20 moles of iron??

User Voithos
by
7.6k points

1 Answer

6 votes

Answer:


m_(Fe)=4.02x10^(2)gFe

Step-by-step explanation:

Hello!

In this case, since the mole-mass relationships allows us to compute the moles or mass of a sample given the mass or moles via the atomic (elements) or molar mass (compounds). For iron, whose atomic mass is 55.847 g/mol, we can compute the mass o 7.20 moles as shown below:


m_(Fe)=7.20molFe*(55.847gFe)/(1molFe)\\\\m_(Fe)=4.02x10^(2)gFe

As you can see we write 1 mol Fe on bottom in order to cancel the given moles out.

Best regards!

User Jabalazs
by
8.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.