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3 years ago

Ayuda plis :(Cuando una reacción es de orden cero: ¿porqué se llama orden cero?

Chemistry

1 answer:

KiRa [710]3 years ago

3 0

Answer:

Revisa la explación detallada, por favor.

Explanation:

¡Hola!

En este caso, teniendo en mente la definición de ley de velocidad, es posible recordar que esta tiene la forma genérica:

$r=k[A]^m$

En donde k es la constante de velocidad, [A] la concentration de cualquier especie A en la reacción y m el orden the reacción. Ahora, hay tres órdenes de reacción, cero, primer, y segundo orden, y esto pasa cuando m=0, m=1 y m=2 respectivamente. Por lo tanto, si la reacción es de orden cero, la rapidez de reacción resulta igual a la constante de velocidad dado que la concentración estaría elevada a la cero y por consiguiente siempre tendrá valor de 1, por lo que la concentración no afecta la velocidad de reacción. Esto anterior se expresa como:

$r=k[A]^0\\\\r=k$

¡Saludos!

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Can someone please answer this?

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Answer:-

0.229 L

Explanation:-

Molar mass of AgBr = 107.87 x 1 + 79.9 x 1

=187.77 grams mol-1

Mass of AgBr = 150 grams

Number of moles of AgBr = 150 grams / 187.77 gram mol-1

= 0.8 mol

The balanced chemical equation is

NaBr (aq) + AgNO3 (aq)--> AgBr(s) + NaNO3(aq)

From the equation we can see that

1 mol of AgBr is produced from 1 mol of AgNO3.

∴ 0.8 mol of AgBr is produced from 1 x 0.8 / 1 = 0.8 mol of AgNO3.

Strength of AgNO3 = 3.5 M

Volume of AgNO3 required = Number of moles / strength

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3 years ago

For each of the following reactions, identify the missing reactant(s) or products(s) and then balance the resulting equation. No

Pachacha [2.7K]

Answer:

A. The reactants are= Li and O2

The balanced equation is:

4Li + O2 —> 2Li2O

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The balanced equation is:

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The balanced equation is:

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Explanation:

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The reactants are Li and O2. Thus the equation is given below:

Li + O2 —> Li2O

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There are 2 atoms of O on the left side and 1 atom on the right side. It can be balance by putting 2 in front of Li2O as shown below:

Li + O2 —> 2Li2O

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Mg(ClO3)2 —> MgCl2 + O2

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The equation is given below:

HNO3 + Ca(OH)2 —> Ca(NO3)2 + H2O

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C5H12 + O2 —> 5CO2 + 6H2O

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Ayuda plis :(Cuando una reacción es de orden cero: ¿porqué se llama orden cero?​

Ayuda plis :(Cuando una reacción es de orden cero: ¿porqué se llama orden cero?