Question

Given the following chemical equation, if 50.1 grams of silicon dioxide is heated with excess carbon and 32.3 grams of silicon carbide is produced, what is the percent yield for this reaction?
SiO2 (s) + 3C (s) arrow SiC (s) + 2CO (g)

Answer 1

97%


75%


103%


48%

Answer 2

molecular weight of SI C ???

Answer 3

SI- 28.08 C-12.01

Answer 4

LOL:) how did u calculate let me know??

Answer 5

Percentage Yield = mass of Actual Yield/mass of Theoretical Yield x 100%

Answer 6

but its coming around 80 % in this case

Answer 7

32.03/40 *100 =80.75 %

Answer 8

This is why I have you!

Answer 9

i dont know the options u have took from !!!1???

Answer 10

u told 97 % how u got that

Answer 11

51.1/32.4 x 100... I was wrong

Answer 12

50.1***

Answer 13

32.3***

Answer 14

does weight of reactant has any role in this i dont think sooo LOL:(

Answer 15

yeah... :( chemistry does not like me... but 80.75% isn't a choice... either...

Answer 16

:)

Answer 17

sory i cant any more such questions :(

Answer 18

That is okay that was the last one of that type I think...

Answer 19

LOL:)