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Biology; Chemistry; Physics: Post your doubts here!

Anam Noor

Anam Noor

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Now here is chemistry question
how to solve it
the fertilizer ammonium nitrate (NH4NO3, Mr. = 80 ) is manufactured from ammonia (Mr.= 17) by a two stage process :
STAGE 1= NH3 +2O2-----> HNO3 + H2O
STAGE 2= HNO3+ NH3 -----> NH4NO3
what is the maximum mass of the fertilizer that can be made if only 17
tonnes of ammonia is availaible?
A.34 tonnes
B. 40 tonnes
C. 80 tonnes
D. 97 tonnes
 
Spidey21

Spidey21

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Anam Noor said:
Now here is chemistry question
how to solve it
the fertilizer ammonium nitrate (NH4NO3, Mr. = 80 ) is manufactured from ammonia (Mr.= 17) by a two stage process :
STAGE 1= NH3 +2O2-----> HNO3 + H2O
STAGE 2= HNO3+ NH3 -----> NH4NO3
what is the maximum mass of the fertilizer that can be made if only 17
tonnes of ammonia is availaible?
A.34 tonnes
B. 40 tonnes
C. 80 tonnes
D. 97 tonnes
Click to expand...
the answer has to be C
tell me if i am right and then ill explain...:)
 
ashiqbal

ashiqbal

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Anam Noor said:
Now here is chemistry question
how to solve it
the fertilizer ammonium nitrate (NH4NO3, Mr. = 80 ) is manufactured from ammonia (Mr.= 17) by a two stage process :
STAGE 1= NH3 +2O2-----> HNO3 + H2O
STAGE 2= HNO3+ NH3 -----> NH4NO3
what is the maximum mass of the fertilizer that can be made if only 17
tonnes of ammonia is availaible?
A.34 tonnes
B. 40 tonnes
C. 80 tonnes
D. 97 tonnes
Click to expand...

Spidey21 said:
the answer has to be C
tell me if i am right and then ill explain...:)
Click to expand...

i think it is B.
look only 17 tonnes available which is 17000000/17 moles, or to keep it simple 17/17 = 1 mole
so in first stage 0.5 moles ammonia will form 0.5 moles HNO3
in second stage, the rest of ammonia, 0.5 mole will react with 0.5 mole HNO3 to form 0.5 moles NH4NO3
0.5 moles NH4NO3 = 40 tonnes.
 
asd

asd

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It's B, 40 tonnes. Add up the equations and solve.
And lmao about the 'go easy' thing.
 
asd

asd

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Man i'm so worried about utilizing the space in section B. If i get first 2 lines wrong and wish to cut them, and then if my answer exceeds the given lines, will they deduct the marks for that?
 
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