Hi guys, I need help !

X and Y react according with the following equation:

X (ac) + 2W (ac) --► Z ↓ + T (ac)

taking 50 ml of a solution of X (0,1 M); and mixed up with 10 ml solution of 0,2 M of W. in accordance to the last mention. how much solution is left ?

Question

Hi guys, I need help !

X and Y react according with the following equation:

X (ac) + 2W (ac) --► Z ↓ + T (ac)


taking 50 ml of a solution of X (0,1 M); and mixed up  with 10 ml solution of 0,2 M of W.  in accordance to the last mention. how much solution is left ?

rock_mit182 · Answer

A. 0,003 moles de W
B. 0,005 moles de X
C. 0,001 moles de W
D. 0,004 moles de X
beyond the answer I need to clarify the approach , please someone help me out!

cydney_morgan · Answer

Hey its you!

cydney_morgan · Answer

Give me a second.. :)

rock_mit182 · Answer

ok ;)

cydney_morgan · Answer

Sorry, I have not learned this yet, I'm trying to figure this out.... Give me a couple min... going into *insta* learn mode..

rock_mit182 · Answer

well I'm good in math. but it seems to me that chemistry concepts allude my logic, hope you can help me out so take y

rock_mit182 · Answer

your time*

cydney_morgan · Answer

Oh, I'm in the intensive math class but the honors science class... lol!
I'm having issues sorry, I'll keep trying..

rock_mit182 · Answer

impressive, you're the right one science girl ;)

rock_mit182 · Answer

anyway i have till friday to come up with something so I'll give it a try also

cydney_morgan · Answer

Omg, I'm so sorry, my computer completely crashed.

rock_mit182 · Answer

don't worry I'm going to read about the topic and then I'll figure it out, ;)

cydney_morgan · Answer

Thank you for not being mad!! I feel so bad I couldnt help. :'C

rock_mit182 · Answer

I'm impressed with your commitment, that shows passion for what you do. when you need help in math, just tell me ..;)

cydney_morgan · Answer

Thank you so much, I'm taking a math test right now! I'll tell you if I need help. :)

rock_mit182 · Answer

ok.

aaronq · Answer

Find moles using the molarity and volume; $M=\dfrac{n_{solute}}{L_{solution}}$

subtract one from the other taking into account the stoichiometric coefficients.

rock_mit182 · Answer

$$[(0,01L)*(0,2M)= 2 solute ]  - [(0,05 L) * (0,1M) = x solute] $$

rock_mit182 · Answer

is that what you mean ?

aaronq · Answer

yeah, the units of the equation are moles (because molarity is "mol/L", so L cancels out)

rock_mit182 · Answer

thanks a lot  !, are you proficient in general chemistry ?

aaronq · Answer

no problem.  yes i am

rock_mit182 · Answer

good to know, the math is no so hard but I struggle with the concepts

aaronq · Answer

yeah, the math is arithmetic.The concepts take a little logic, it helps to picture what is going on in real life (as if you were in the lab).

rock_mit182 · Answer

I'll take the advice, appreciate that