Homework Help: Chemistry

Posted by Kim on Sunday, March 28, 2010 at 6:34pm.

If 50.0 g of silicon dioxide is heated with an excess of carbon, 27.9g of silicon carbide is produced.
SiO2(s) + 3C(s) --> SiC(s) + 2CO(g)

what is the percent yield of this reaction?

Chemistry - DrBob222, Sunday, March 28, 2010 at 7:06pm
Convert 50.0 g SiO2 to moles. moles = grams/molar mass

Using the coefficients in the balanced equation, convert moles SiO2 to moles SiC.

Convert moles SiC to grams. grams = moles x molar mass. This is the theoretical yield of SiC in the reaction.

%yield = (actual yield/theoretical yield)*100 = ??

The actual yield given in the problem is 27.9 grams SiC.

Answer this Question

Related Questions

chemistry - When 50 g of silicon dioxide is heated with an excess of carbon, 32....
Chemistry - When 50.0g of silicon dioxide is heated with an excess of carbon 32...
CHEM - Silicon carbide, commonly known as carborundum, is a very hard and ...
chemistry - What is the change in entropy when 0.290 g of silicon is burned in ...
Chemistry - What is the change in entropy when 0.290 g of silicon is burned in ...
Chemistry - Which of the following surfaces does a true monolayer always form ...
chemistry - Carbon and silicon are both in Group 14 of the periodic table. (i) ...
chemistry - what is the mass of 1 mole of carbon dioxide (CO2), and silicon ...
chemistry - what is the mass of 1.22x10^23 molcules of carbon dioxide(co2) and ...
Earth Science - Quartz is made up of___________ a.)silicon and oxygen b.)iron ...

For Further Reading

First Name:
School Subject:
Answer: