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Ymorist [56]
3 years ago
14

How does a buffer work?

Chemistry
1 answer:
Margarita [4]3 years ago
8 0

Answer:

It bonds with the added H+ or OH in solution.

Explanation:

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The proposed mechanism for a reaction is
kompoz [17]

Answer: Option (2) is the correct answer.

Explanation:

Rate law is defined as the function of concentration of reactants in a chemical reaction. Rate law of a reaction depends on the slow step of a chemical reaction.

For example, ClO^{-}(aq) + H_{2}O(l) \rightarrow HClO(aq) + OH^{-}(aq) is a slow step reaction.

Therefore, its rate law will be expressed as follows.

        Rate law = k[ClO^{-}][H_{2}O]

Thus, we can conclude that out of the given options k[ClO^{-}][H_{2}O] would be a rate law for the given reaction.

3 0
3 years ago
Calculate the value of [N2]eq if [H2]eq = 2.0 M, [NH3]eq = 0.5 M, and Kc = 2.N2(g) + 3 H2(g) ↔ 2 NH3(g)0.062 M62.5 M0.40 M0.016
Sloan [31]

Answer:

[ N₂(g) ]  = 0.016 M

Explanation:

N₂(g) + 3 H₂(g) ↔ 2 NH₃(g)

The equilibrium constant for the above reaction , can be written as the product of the concentration of product raised to the power of stoichiometric coefficients in a balanced equation of dissociation divided by the product of the concentration of reactant raised to the power of stoichiometric coefficients in the balanced equation of dissociation .  

Hence ,  

Kc = [ NH₃ (g) ]² / [ N₂(g) ]  [ H₂(g) ]³

From the question ,

[ NH₃ (g) ] = 0.5 M

[ N₂(g) ] = ?

[ H₂(g) ] = 2.0 M

Kc = 2

Now, putting it in the above equation ,  

Kc = [ NH₃ (g) ]² / [ N₂(g) ]  [ H₂(g) ]³

2 =  [ 0.5 M ]² / [ N₂(g) ]  [ 2.0 M ]³

[ N₂(g) ]  = 0.016 M .

3 0
3 years ago
A patient arrives in the emergency room with a burn caused by steam. Calculate the heat that is released when 13.3 g
Vladimir79 [104]

The heat released from the calculation is 33.56 kJ.

<h3>Heat of vaporization</h3>

The heat of vaporization is the heat absorbed when a substance changes from liquid to vapor. It is equal to the heat released when the vapor is condensed.

The total heat released = Heat of condensation + Heat lost to the skin

=  (13.3 g × 2260 J/g) + (13.3 g × 4.18 J/g/°C  × ( 100 - 37)°C)

= 30058 + 3502

= 33.56 kJ

The heat released from the calculation is 33.56 kJ.

Learn more about heat of vaporization: brainly.com/question/2427061

7 0
3 years ago
Over a period of years, the average rainfall in an area has decreased, causing environmental changes. Most likely to survive the
zalisa [80]

ans D) with a great amount of genetic variation

3 0
3 years ago
Read 2 more answers
What is the density (g/mL) of an object that has a mass of 0.03 kg and occupies a volume of 25 mL?
tatyana61 [14]
First convert the kg to g ----- 0.03kg = 30g
Then divide the mass by the volume ----- 30g ÷ 25mL = 1.2
The density is 1.2g/mL<span />
5 0
3 years ago
Read 2 more answers
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