Friday
April 17, 2015

Homework Help: Chemistry Pretest

Posted by Sarah on Friday, September 28, 2012 at 7:15am.

Fe can be prepared as 2 Al + Fe2O3 ----> 2 Fe + Al2O3. Suppose that 0.450 moles of Fe2O3 are reacted with an excess of Al. Suppose that 43.6 grams of Fe are obtained. What is the percent yield of Fe?

a) 16.2%
b) 60.7%
c) 86.7%
d) 43.4%


Percent yield= actual yield of product divided by theoretical yield of product times 100.

The actual yield is stated to be 43.6 g of Fe, so I just need to know how to get the theoretical yield from the information it already gives me from the problem.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Honors Chemistry - Equation: Fe2O3 + 2Al ---> 2Fe + Al2O3. How many grams of ...
Chemistry - I'm having a hard time figuring these out. Please help me on them! ...
Chemistry - Fe2O3(s) + 2Al(s)-> 2Fe(l) + Al2O3(s) What is the theoretical ...
Chemistry - A sample weighing 3.064 g is a mixture of Fe2O3 (molar mass = 159.69...
Chemistry - Fe2O3(s) + 2 Al(s) 2 Fe(l) + Al2O3(s) Suppose we want to make 18.0 ...
CHEMISTRY - Fe2O3 + 3CO= 2Fe + 3CO2, SUPPOSE THAT 1.64kg OF Fe ARE OBTAINED FROM...
chemistry - Fe2O3+ 3CO=2Fe+3Co2, suppose that 1.64kg of Fe are obtained from a 2...
chemistry - how many grams of CO are needed to react with an excess of Fe2O3 to ...
Chemistry - How many grams of CO are needed to react with an excess of Fe2O3 to...
chemistry - how many grams of CO are needed to react with an excess of Fe2O3 to ...

Members