Question

I need help in Chem
i will give medals
allow me to write the equation using the equation bar

Answer 1

\[2H _{2} + O _{2} --> H _{2}O\]

Determine the theoretical yield of water from 1000g of \[H _{2}\](Hint: determine the mass of water produced) Please help

Answer 2

ITs the same thing as the last question I answered, with slight changes.

Answer 3

Wait, theoretical yield, as in moles? or...

Answer 4

can you do the question
me and my friend get same wrong answer

Answer 5

Show me your work. Also, the answer is in moles right?

Answer 6

its in grams

Answer 7

Bugger. I don't remember. sorry. Show your work, and then post a link to your question. Sorry about that.

Answer 8

SHOW YA WORK!

Answer 9

ok so this is what my friend i did
we divided 100 by 2.02 and then we got 495.0. Since the mole ratio is 2:2, the moles of H20 is 495.0. Then we multiplied 18.02 and then we got 8919.9g

Answer 10

100?

Answer 11

Where'd 2.02 come from? I don't think the theoretical yield is 2:2. Isn't it 2:. Where did 18.02 come from? Also, I dunno chemistry.

Answer 12

How is moles of H2O that?

Answer 13

i thought u knew chem ><

Answer 14

BAH HA HA. I'm a homeless man living in SeaWorld.

Answer 15

Can you draw out the actual entire thing?

Answer 16

how am i supposed to draw the thing?
that's all there is to it....

Answer 17

Don't you need some gigantic "box" like thing?

Answer 18

we dont do that here

Answer 19

Aw. It's a nice way to organize it.

Answer 20

Well. I can't help much. Maybe Imranh will.

Answer 21

aii ill see

Answer 22

hey, I took chem a year a go, but I will give this a shot. So, the MOLE ratio of H2 to H2O is 2:1. You have 1000 grams of H2 will be equivelent to 495.05 moles of H2. Hence, 495.05/2 will give you the moles of H2O, which is=247.524 moles of H2O. Now, multiply 247.524 by 18.02 which is the atomic number of 1 molecule of water, and we get: 4460.4 Grams.

Therfore for 1000 grams of H2, you will get 4460.4 grams of water.

Hope that helps. Someone checks my answers, I am not 100% sure if it is right.

Answer 23

sorry the answer is 9000g

Answer 24

hmm... which is why you assumed the ratio is 2:2?

Answer 25

because if you say that the ratio is 2:20 you will get the right answer, but it does not make sense. So, I guess I wil ljust give up now.
The answer at the back of the book might be wrong. So, check with your proff.

Answer 26

yeah true
but the answer we got is different

Answer 27

which answer for the 2:2 ratio you did?

Answer 28

i got 8919.9

Answer 29

The reaction above isn't balanced properly. The mole ratio should be 2:2. The theoretical yield is 8919g, but your book has probably rounded the answer to 1 sigfig, so it says 9000g, rather than 8919.