[luketapis]

How many grams of NCl3 and HCl are produced if 1.00 gram of ammonia reacts
stoichiometrically (completely) with 3.00 grams of chlorine gas in the reaction shown below?
NH3 + 3Cl2
NCl3 + 3 HCl
How much of each reactant remains present after the reaction is over? Which reactant is the
limiting species?

Cl is limiting.
        NH3 + 3Cl2
NCl3 + 3 HCl
mass: 1g       3g       ?           ?
moles:1/17     3/70.8  0.0083 0.082
        =0.588   =0.424
what shell I do next?

[Dan]

        NH3 + 3Cl2
NCl3 + 3 HCl
mass: 1g       3g       ?           ?
moles:1/17     3/70.8  0.0083 0.082
        =0.588   =0.424

1. Numbers highlighted in red are incorrect. You are out by a factor of 10. Be careful.

2. Where do the numbers in blue come from? They make no sense to me. Show working.

You have correcly identified that Cl₂ is the limiting reagent.

Convert: mass Cl₂ -> moles of Cl₂ -> moles NCl₃ -> mass NCl₃

[luketapis]

Ok I got it.

N:1                N:1
H:3                H:3
Cl:6               Cl:6

        NH3          +             3 Cl2      →                                 NCl3              +            3 HCl
mole:   1                              3                                            1                                 3
       1g/17.0306 g              3g/70.9064g                            120.3663g                     109.359/3
          =0.0587178 mol NH3   =0.0423093 mol Cl2                                                      
        0.0423093/3                 0.0423093                              
        0.0141031

 0.0141031of NH3 react with 0.0423093 of 3 Cl2 to give: ??


I don't know what's then.




 

[Dan]

Sorry about the balancing issue, my mistake - I have removed it.

Back to the problem.

If 1 mol ammonia reacts with 3 mol chlorine, how many moles of nitrogen trichloride are produced?

Similarly, if 0.014 mol ammonia reacts with 0.042 mol chlorine, how many moles of nitrogen trichloride are produced?

[luketapis]

I don't know

[luketapis]

0.0141031 mol of nitrogen trichloride and 0.0423093 of HCl

[Dan]

Yes. Now convert to mass.