In another experiment, if 80 xo3 molecules react with 104 brz3 molecules how many br2 molecules will be produced which reactant will be used up in the reaction

Respuesta :

This is an incomplete question, here is a complete question.

The balanced chemical reaction is:

[tex]6XO_3+8BrZ_3\rightarrow 6XZ_4+4Br_2+9O_2[/tex]

In another experiment, if 80 [tex]XO_3[/tex] molecules react with 104 [tex]BrZ_3[/tex] molecules. How many [tex]Br_2[/tex] molecules will be produced which reactant will be used up in the reaction.

Answer : The number of molecules of [tex]Br_2[/tex]  will be, 52 molecules and [tex]BrZ_3[/tex] reactant will be used up in the reaction because it is a limiting reagent and it limits the formation of product.

Explanation :

The balanced chemical reaction is:

[tex]6XO_3+8BrZ_3\rightarrow 6XZ_4+4Br_2+9O_2[/tex]

First we have to determine the limiting reagent.

From the balanced reaction we conclude that,

As, 8 molecules of [tex]BrZ_3[/tex] react with 6 molecule of [tex]XO_3[/tex]

So, 104 molecules of [tex]BrZ_3[/tex] react with [tex]\frac{104}{8}\times 6=78[/tex] molecule of [tex]XO_3[/tex]

From this we conclude that, [tex]XO_3[/tex] is an excess reagent because the given moles are greater than the required moles and [tex]BrZ_3[/tex] is a limiting reagent and it limits the formation of product.

Now we have to calculate the molecules of [tex]Br_2[/tex]

From the reaction, we conclude that

As, 8 molecules of [tex]BrZ_3[/tex] react to give 4 molecules of [tex]Br_2[/tex]

So, 104 molecules of [tex]BrZ_3[/tex] react to give [tex]\frac{104}{8}\times 4=52[/tex] molecules of [tex]Br_2[/tex]

Hence, the number of molecules of [tex]Br_2[/tex]  will be, 52 molecules and [tex]BrZ_3[/tex] reactant will be used up in the reaction because it is a limiting reagent and it limits the formation of product.

  • The number of molecules of [tex]Br_{2}[/tex]  will be, 52 molecules .
  • The  [tex]BrZ_{3}[/tex] reactant will be used up in the reaction because it is a limiting reagent and it limits the formation of product.

The Chemical reaction is given as,

      [tex]6XO_{3}+8BrZ_{3} [/tex] ⇒ [tex]6XZ_{4}+4Br_{2}+9O_{2}[/tex]

From above reaction, It is observed that, 8 molecules of [tex] BrZ_{3}[/tex]  reacts with 6 molecules of [tex]XO_{3}[/tex].

So, 104 molecules of [tex]BrZ_{3}[/tex] reacts with,

                                      [tex]=\frac{6}{8}*104=78 [/tex] molecules of [tex]XO_{3}[/tex]

Therefore, [tex] BrZ_{3}[/tex] is a limiting reagent.

From chemical reaction it is observed that,

8 molecules of [tex] BrZ_{3}[/tex] = 4 molecules of [tex]Br_{2}[/tex]

So, 104 molecules of [tex] BrZ_{3}[/tex] = [tex]\frac{4}{8}*108=52 [/tex] molecules of [tex]Br_{2}[/tex]

Hence, The number of molecules of [tex]Br_{2}[/tex]  will be, 52 molecules .

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