In this reaction- 2Al-3-2O2- gt- Al2O3- 9grams of Al will react- with

Dear student, Q: In this reaction 2Al+3/2O2 formed Al2O3 ,9 gm of Al will react with how many gm of O2? Answer: nbsp;Chemical Reaction: 2Al + 3/2 O2 — gt ...

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Standard XII

Chemistry

Werner's Coordination Theory

In this react...

Question

In this reaction, 2Al+3/2O2----> Al2O3, 9grams of Al will react, with

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Solution

Dear student,

Q:-In this reaction 2Al+3/2O₂ formed Al₂O₃ ,9 gm of Al will react with how many gm of O2?

Answer:- Chemical Reaction: 2Al + 3/2 O₂ ---> Al₂O₃

From the above chemical reaction, we can say that, 2 moles or 54 g of aluminium requires 3/2 moles or 48 g of O₂.

Then, 9 grams of Aluminium will require = (48/54) x 9 = 8 grams of O₂.
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Similar questions

9 g

of Al will react, with ____ .

2 A l + \frac{3}{2} O_{2} \to {A l}_{2} O_{3}

Q. In the reaction:

2 A l + C r_{2} O_{3} \to A l_{2} O_{3} + 2 C r

4.98

g of

A l

reacted with

20.0

C r_{2} O_{3}

. How much grams of reactant remains at the completion of the reaction?

Q. When

10 g

A l

is used for reduction in each of the following alumino thermic reactions, which reaction would generate more heat and by how much ?
a.

2 A l + C r_{2} O_{3} \to A l_{2} O_{3} + 2 C r

2 A l + F e_{2} O_{3} \to A l_{2} O_{3} + 2 F e

Standard heat of formation of

A l_{2} O_{3}

C r_{2} O_{3}

and

F e_{2} O_{3}

are

- 1676 k J

- 1141 k J

and

- 822.2 k J

, respectively.

A l

and

K C l O_{3}

react together to form

A l_{2} O_{3}

according to the following reactions :

2 K C l O_{3} ⟶ 2 K C l + 3 O_{2}

4 A l + 3 O_{2} ⟶ 2 A I_{2} O_{3}

4

moles of

K C l O_{3}

(

50 %

pure) on reaction with excess of Al forms _______ moles of

A l_{2} O_{3}

Δ H_{f}^{\circ}

F e_{2} O_{3}

and

A l_{2} O_{3}

are -189 kJ and -405 kJ respectively. How much heat (in kJ) is given out during reaction of 1 g Al according to

2 A l + F e_{2} O_{3} ⟶ A l_{2} O_{3} + 2 F e

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