Question

how many grams of oxygen gas will be required to react completely with 92.0 grams of solid sodium to form solid sodium oxide?

Answer 1

First start by writing a balanced chemical equation between sodium (Na) and oxide (O-)

Answer 2

Can you do that?

Answer 3

I'm typing an answer for you :)

Answer 4

sorry the site locked up.....

Answer 5

Start by writing a balanced equation. Then you can take 92g Sodium x 1 mol sodium/molar mass of sodium(that leaves you with moles of Sodium). Then multiply that by x mol Oxygen/x mol sodium (this gives you moles of Oxygen). Then multiply that by molar mass/1 mol Oxygen(This leaves you with the amount in grams you need to react with sodium)

Answer 6

I have the balanced equation done. i am on the factor labeling part.

Answer 7

what is your balanced equation? .. I can work out the math so you have something to check it to

Answer 8

Thank you so much!

Answer 9

You are very welcome

Answer 10

the balanced equation that I have is 4Na + O2 --> 2Na2O

Answer 11

I got 128g O2

Answer 12

Okay that's what I wrote, but that's one spot I'm weak in. Lol...
I came up with 32.0139191 or 32.01g... Let me try

Answer 13

your set up should look like this...
92g Na x 1 mol Na/22.99g Na x 1 mol O2 / 4 mol Na x 32g O2/1 mol O2 = 32.01
when you type it in it should be (92x32) / (22.99x4)

Answer 14

yes, thank you! I forgot to put it over 4 mol Na. Ooops! hahah. But when you find the molar mass of Na2O, would it be 61.98 or do you have to use it from the equation where its 2Na2O?

Answer 15

Just the mass of Na2O :)

Answer 16

Okaay, that's what I thought. Hahah. Thank you!

Answer 17

No prob. Glad I could help you out.

Answer 18

Could I ask you about one more problem? hahah.

Answer 19

I can sure try. Lol. but may not know the answer. :)

Answer 20

It says: Calculate the # of grams of Na2O that will be produced when 5.00 moles of solid sodium react with oxygen gas.
This is how I have it set up: 5.00ol Na x 22.99 g Na/1 mol Na x 4 mol Na/2 mol Na x 1 mol Na2O/61.98 g Na2O
Is that right? Haha

Answer 21

No. You don't need to convert Na to grams ... so just
5 mol Na x 2 mol Na2O/4 mol Na x 61.98 g/1 mol Na2O = 154.95g

Answer 22

Ohhh, alrighty! I see, becuase then the grams of Na wouldn't cancel out! I understand!

Answer 23

Exactly. :) You made it more complicated than it has to be. lol!! Good luck

Answer 24

Hahah. Yes, I did! lol. Thank you!

Answer 25

Is that all?

Answer 26

Yes m'am! :)

Answer 27

Ok. Good luck in you're studies. If you have questions you can email me cntrywrtr@yahoo.com and I will try to help you. My name is Chrystal.

Answer 28

Awesome, Thank you so much!