Beautiful_Lier96 2 years ago Can someone eplain how to do this ? : identify the limiting reagent and the volume of CO2 formed when 11 L CS2 reacts with 18 L O2 to produce SO2 gas at STP. CS2(g)+3O2(g) → CO2(g)+2SO2(g) A.CS2; 3.3 L CO2 B.O2; 6.0 L CO2 C.CS2; 11 L CO2 D.O2; 27 L CO2

1. aaronq

the limiting reagent dictates how much of the product you can make i.e. the one you have less of. so (1) convert what you have to moles (2) divide each one by it's coefficient e.g. if, aA + bB -> cC; moles of A/a = moles related to coefficient (3) whichever one is lower is the limiting reagent

2. aaronq

to find the volume of CO2 produced using the coefficients determine how many moles you produced based on the limiting reagent (since you can only make that many moles. eg. consider: aA + bB -> cC; if A is the limiting reagent, then moles of C produced: moles of A/a=moles of C/c

3. Beautiful_Lier96

so your saying i would use the final part

4. aaronq

what do you mean by the "final part"?

5. Beautiful_Lier96

CO2(g)+2SO2(g)

6. aaronq

well you have to use all of it. use what the quantities they gave to find the limiting reagent, then use the quantity (about of moles) of the limiting reagent (since you can't make more than what you have, right?) to find how many moles of CO2 you can make based on the coefficients.

7. aaronq

use the quantities*

8. Beautiful_Lier96

okay im lost

9. aaronq

find the limiting reagent by following the directions in my first post

10. aaronq

what did you get?

11. Beautiful_Lier96

A? is that right

12. Beautiful_Lier96

@aaronq

13. aaronq

nope

14. aaronq

15. aaronq

so which is the limiting reagent?

16. Beautiful_Lier96

idkay. i did everything about 10 times and still cant figure it out. cuz i keep on getting diff numbers

17. aaronq

which is the limiting reagent?

18. Beautiful_Lier96

what does that mean ?

19. aaronq

my first post: the limiting reagent dictates how much of the product you can make i.e. the one you have less of.

20. Beautiful_Lier96

i looked up the answer its B. but i still dnt know how

21. aaronq

nope, thats wrong also. answer my question, which is the limiting reagent?