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expeople1 [14]
3 years ago
6

Write the equilibrium constant expression for this reaction: NH(aq)—>NH3(aq)+H+ (aq)

Chemistry
1 answer:
kicyunya [14]3 years ago
5 0

Answer:

k = \frac{[NH_3][H^+]}{[NH_4^+]}

Explanation:

The equilibrium constant of a reaction is defined as the ratio of the concentrations of products over concentrations of reactants powered to its coefficients. For the reaction:

aA + bB ⇄ cC + dD

The equilibrium constant, k, is written as:

k = \frac{[C]^c[D]^d}{[A]^a[B]^b}

For the reaction:

NH₄⁺(aq) ⇄ NH₃(aq) + H⁺(aq)

The equilibrium constant is:

k = \frac{[NH_3][H^+]}{[NH_4^+]}

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E is Bohrs model the dots on the rings represent the valence electrons
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What phenomenon is most responsible for ocean layers?
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Answer:

precipitations

Explanation:

bcoz of water

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Choices for images
BabaBlast [244]

One

Let's start by stating what we know is wrong. Equilibrium is achieved when the reactants and products have a stable concentration. That makes D incorrect. Equilibrium is not established until about the 6th or 7th second.

The fact that you get any products at all means that the reactants will become products.  Just who is favored has to be looked at very carefully. The products start very near 0. They go up until their concentration at equilibrium. When the reach equilibrium, the products have increased to 17. The reactants have dropped from 40 to 27. By a narrow margin, I would say the products are favored.

C is incorrect. There are still reactants left.  

E is incorrect. the reactants started out with a concentration of 40. The reaction is not instantaneous.  The concentration was highest at 40 or right at the beginning. This assumes that the reactants were mixed and the products were produced and the water/liquid amount has not changed.

B is incorrect. The concentration of the reactants is higher at equilibrium.

A is wrong. It is product favored.

I'm getting none of the above.

Problem Two

AgBr is insoluble (very). You'd have to work very hard to get them to separate into their elemental form. Just putting AgBr in water isn't enough. Lots of heat and lots of electricity are needed to get the elemental form.

I suppose you should pick B. Mass must be preserved. But if you balanced the equation, it would work with heat and electricity.



3 0
3 years ago
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Please help me with this science
svlad2 [7]
You didn't ask a question just to let you know
6 0
3 years ago
After substantial heating, 6.25 g of iron produced 18.00 g of a compound with chlorine. The empirical formula is:
babunello [35]

Answer:

Option A. FeCl3

Explanation:

The following data were obtained from the question:

Mass of iron (Fe) = 6.25g

Mass of the compound formed = 18g

From the question, we were told that the compound formed contains chlorine. Therefore the mass of chlorine is obtained as follow

Mass of chlorine (Cl) = Mass of compound formed – Mass of iron.

Mass of chlorine (Cl) = 18 – 6.25

Mass of chlorine (Cl) = 11.75g

The compound therefore contains:

Iron (Fe) = 6.25g

Chlorine (Cl) = 11.75g

The empirical formula for the compound can be obtained by doing the following:

Step 1:

Divide by their molar mass

Fe = 6.25/56 = 0.112

Cl = 11.75/35.5 = 0.331

Step 2:

Divide by the smallest

Fe = 0.112/0.112 = 1

Cl = 0.331/0.112 = 3

The empirical formula for the compound is FeCl3

3 0
3 years ago
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