Question

4NH3 + 5O2 4NO + 6H2O The molar mass of NH3 is 17.03 g/mol. How many moles of O2 are required to react completely with 2.67 ´ 10–4 g of NH3?

Answer 1

1.25 mc013-2.jpg 10–5
1.96 mc013-3.jpg 10–5
3.64 mc013-4.jpg 10–3
5.68 mc013-5.jpg 10–3

Answer 2

How many moles of ammonia are available?

Answer 3

idk im stick with this is and what i copied and past is all the question has for me to use to get the answer

Answer 4

Can you first find how many moles of ammonia you have? How would you do that?

Answer 5

i literally have no clue. i dont have a teacher becuase my class is online. and im on a quiz that i have to turn in in 3 minutes

Answer 6

If you are doing a quiz, don't you think that the mark you should receive would be based on what you know? Isn't asking for help while you are taking a test cheating? What do you think?

Answer 7

no im allowed to. its not an actual like graded quiz its a "quiz" to see where i am at for myself but ive retakin it 3 times and i just cant figure it out

Answer 8

i keep getting answer C

Answer 9

Can you explain what you did to get that answer?

Answer 10

i was dividing the 17.03 by the 2.67, thats what the note showed me.

Answer 11

i just submited it

Answer 12

You know the mass of ammonia. The first step would be to figure out how many moles of ammonia are available.

Answer 13

4

Answer 14

is that right? i leterally know nothing

Answer 15

If you want to learn how to do this stay with me for a while. I will explain the steps. Follow along.

Find the number of moles of ammonia available. Do this by dividing the mass of the ammonia by its molar mass. Can you do that and see what you get?

Answer 16

do you have an email? my class gets out in 5 minutes. could you email me help?

Answer 17

my emial is analysa.bonifas@yahoo.com

Answer 18

You can message me here if you want. Click on the envelope icon at the top to leave me a message.

Answer 19

mole= mass/ Molecular mass
u have both values for NH3

Answer 20

4NH3 + 5O2--> 4NO + 6H2O

if u look at the ratio between NH3 and O2 you will see that its
4:5 (coefficients)

Answer 21

now that mean the mole you get is ----4
mole of O2----5
so mole of O2= (5* mole that you got in previous calculation)/ 4

Answer 22

1.25

Answer 23

i will message back when i get home. class is over

Answer 24

thank you that helped me alot!

Answer 25

okay :)