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I need your help FL (2) - Nevy - 03-19-2012

Lol any help would be appreciated, if there is anyone good at Chemistry.

Limited Reactants

1. Given the following reaction, a student heated 5.52g of copper and 10.1 g of Sulfur.

2Cu (g) + 1S (s) ---> 1Cu2S (s)

a. What is the limited reagent?



b. What mass of the product Cu2S is formed?

c. How much of the excess reactant will be left over?




Here is what i did:

5.52gCu * 1 mol Cu/ 63.5g Cu = 0.09mol Cu

10.1gS 8 1 mol S/ 2 mol Cu = 0.045 mol S

Sulfur = Excess Reagent
Copper = Limited Reagent





RE: I need your help FL (2) - The_Alpha_Dog - 03-20-2012

Wow.. I used to think the stuff I do now in science is confusing but then I saw this.

EDIT: This was not meant to be an arrow to the knee joke. But it is now.


RE: I need your help FL (2) - StillAlive - 03-20-2012

Hmm you'll have to talk to Iban, Holdem, Nudel or Faustie. They are the clever guys in here Tounge


RE: I need your help FL (2) - Dubwub - 03-20-2012

Fook Chemistry, i refuse to go to the class now. It's hard as hell.


RE: I need your help FL (2) - Foxy The Pirate - 03-23-2012

[Image: 16899408.jpg]

Now that i got that out of the way im sorry but i don't know shit about chemistry so can't really help you.


RE: I need your help FL (2) - Mule - 03-25-2012

The answer is within your heart, you just have to look. I believe in you.


RE: I need your help FL (2) - CHOCOLATEPERVE - 03-26-2012

I skip classes all the time and drink how the fuck am i supposed to know this


RE: I need your help FL (2) - Nevy - 03-26-2012

Chill man It was due long time ago I just left it blank