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lina2011 [118]
2 years ago
15

Instead of collecting gas with a syringe, another method involves: • Submerging the evidence in a special agent • Placing a stri

p of charcoal in the airtight container • Using a tiny vacuum • All of the above​
Chemistry
1 answer:
kirza4 [7]2 years ago
3 0
Using a tiny vacuum
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CH3CO2H(aq) + H2O(l) ⇄ CH3CO2-(aq) + H3O+(l)
Evgen [1.6K]
Correct Answer: Option C:<span> The equilibrium position will shift to the right toward the products. 

Reason:
1) This problem is based on </span>Le Chatelier's principle. It is stated as '<em>any</em><span><em> changes in the temperature, volume, or concentration of a system will result in predictable and opposing changes in the system in order minimize this change and achieve a new equilibrium state.</em>' 

2) In present case, the reaction involved is: 
</span><span>                 CH3CO2H(aq) + H2O(l) ⇄ CH3CO2-(aq) + H3O+(l) 
</span>Hence, when the concentration of acetic acid (reactant) is increased, the equilibrium will shift to right to minimize the effect of change in concentration of reactant. 
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3 years ago
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Naddik [55]
Thermal energy from the sun that has transferred to the sidewalk
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Jet fuel has a melting point of -48° C and a boiling point of 163°C
Helen [10]
Solid since it is cold
6 0
3 years ago
How many moles are in 71.7 g of pure aluminum?
Harlamova29_29 [7]

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2.657 mol

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3 0
3 years ago
A saturated aqueous solution of Ag2SO3 contains 3.2x10−5 M Ag+. What is the solubility-product equilibrium constant for Ag2SO3?
Alinara [238K]

Answer:

D) 1.6 x 10⁻¹⁴

Explanation:

The solubility-product equilibrium constant for  Ag₂SO₃ is given by the expression

Ksp = [Ag⁺]² [SO₃²⁻]

where  [Ag⁺] and [SO₃²⁻] are the concentration of the species dissolved in solution for the equlibrium

Ag₂SO₃ (s) ⇄    2 Ag⁺  +  SO₃²⁻

we are given the concentration of  Ag⁺ and from the stoichiometry of the equilibrium, the concentration of SO₃²⁻ is half that value, so

[Ag⁺]² = 3.2 x 10⁻⁵ M

[SO₃²⁻] = 3.2 x 10⁻⁵ M / 2 = 1.6 x 10⁻⁵ M

plugging these values into the solubility product constant equation we have

Ksp = (3.2 x 10⁻⁵)² x (1.6 x 10⁻⁵) = 1.6 x 10¹⁴

Therefore D is the correct answer.

4 0
3 years ago
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