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dsp73
3 years ago
7

24. The equilibrium between carbon dioxide and carbonic acid is very important in biology and environmental science. CO2(g) + H2

O(l) <------------> H2CO3(aq) Which of the following is correct equilibrium constant expression (Kc) for this reaction? a) Kc = [H2CO3] / [CO2] [H2O] b) Kc = [CO2] [H2O] /[H2CO3] c) Kc = [H2CO3] / [CO2] d) Kc = [CO2] / [H2CO3] e) Kc = 1 / [H2CO3]
Chemistry
1 answer:
Andrews [41]3 years ago
7 0

Answer:

Option c) Kc = [H2CO3] / [CO2]

Explanation:

The producttion of carbonic acid by dissolving CO2 in water follows some series of equation.

CO2 dissolves in water (H2O) to produce carbonic acid as shown by the following equation:

1. The CO2 gas first dissolves in water to produce aqueous CO2 as shown below:

CO2 (g) + H2O <=> CO2 (aq) + H2O

2. The aqueous CO2 dissolves in water (H2O) to produce carbonic acid as shown by the following equation:

CO2 (aq) + H2O (l) <=> H2CO3 (aq)

The equilibrium constant for the above reaction is given below:

Kc = [H2CO3] / [CO2]

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Answer:

We know that, composition of HNO3 is Hydrogen, Nitrogen and oxygen. Total number of atoms = 3+1+1=5 atoms are present in 1 molecule of HNO3.

5 0
3 years ago
The recommended application for dicyclanil for an adult sheep is 65 mg/kg of body mass. If dicyclanil is supplied in a spray wit
babunello [35]

Answer:

91 millilitres

Explanation:

Recommended application = 65mg / Kg

This means 65 mg of dicyclanil per kg (1 kg of body mass).

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How many millilitres required to treat 70kg adult?

If 65mg = 1 kg

x = 70 mg

x = 70 * 65 = 4550 mg

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8 0
3 years ago
Which of the following happens when an ionic bond is formed? (1 point)
bazaltina [42]

This problem is asking for an explanation of what happens when an ionic bond is formed. Although the choices are not given in the question, one can find them on the attached file and realize the answer is C "a less electronegative atom donates an electron to a more electronegative atom" according to:

<h3>Types of bonds:</h3><h3 />

In chemistry, the forces that hold atoms together are known as chemical bonds and act like connections for atoms to form compounds. There exist ionic and covalent bonds, so the formers occur when electrons are thoroughly donated from the least electronegative atom to the most electronegative one.

On the flip side, covalent bonds occur when the electrons are shared between the two or more of the atoms forming the compound. In such a way, one can discard choices A and B because they are more related to covalent bonds.

Therefore, one can select C "a less electronegative atom donates an electron to a more electronegative atom" as the correct answer, because not all the elements are able to donate more than one single electron, and the less its valency, the more ionic the compound turns out to be.

Learn more about types of bonds: brainly.com/question/792566

3 0
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How is enthalpy used to predict whether a reaction is endothermic or exothermic? when the enthalpy of the reactants is higher th
mafiozo [28]
When the enthalpy change of the reaction is positive the reaction is endothermic
this means that the reaction is absorbing energy from the surrounding to the vessel
8 0
3 years ago
Read 2 more answers
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