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Select the missing words to complete the definition of buffer capacity. Buffer capacity is the _____________ of acid or base a buffer can handle before pushing the _____________ outside of the buffer range.

Answers

Answer 1
Answer:

Final answer:

Buffer capacity denotes how much acid or base a buffer solution can integrate before alterations in pH becomes significant. It is crucial in maintaining physiological activities, particularly in blood pH regulation. The substance absorbing the ions is typically a weak acid/base and their conjugates.

Explanation:

Buffer capacity is the amount of acid or base a buffer solution can accommodate before the pH is significantly pushed outside of the buffer range. Solutions that contain sizable quantities of a weak conjugate acid-base pair are known as buffer solutions. These usually experience only slight changes in pH when small amounts of acid or base are added.

A large enough addition of these substances can exceed the buffer capacity, consuming most of the conjugate pair and leading to a drastic change in pH. In living organisms, a variety of buffering systems exist to maintain the pH of blood and other fluids within a strict range between pH 7.35 and 7.45, ensuring normal physiological functioning.

The substance that absorbs the ions is usually a weak acid, which absorbs hydroxyl ions, or a weak concentrate base, which absorbs hydrogen ions. The buffer capacity is greater in solutions that contain more of this weak acid/base and their conjugates.

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Answer 2
Answer:

Final answer:

Buffer capacity refers to the amount of acid or base that a buffer solution can absorb before experiencing a significant shift in pH, commonly by one pH unit.

Explanation:

Buffer capacity is the amount of acid or base a buffer can handle before pushing the pH outside of the buffer range. Essentially, it is a measure of a buffer's resistance to pH change upon the addition of an acid or base. Buffer capacity depends on the concentrations of the weak acid and its conjugate base present in the mixture. For instance, a solution with higher concentrations of acetic acid and sodium acetate will have a greater buffer capacity than a more dilute solution of the same components. The buffer's capacity is directly proportional to its ability to absorb strong acids or bases before there's a significant change in pH, typically defined as a shift by one pH unit.

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Describe the relationship between predator and prey in a balanced ecosystem. Please help I'll give brainliest.

Answers

Answer:

predators are controlling the population of the species who are below them in the food pyramid . Also if the population of the preys decrease it will alternatively reduce the predator population .therefore the predator prey relationship balance an eco system.

Calculate the enthalpy for this reaction: 2C(s) + H2(g) ---> C2H2(g) ΔH° = ??? kJ Given the following thermochemical equations: C2H2(g) + (5/2)O2(g) ---> 2CO2(g) + H2O(ℓ) ΔH° = -1,123 kJ C(s) + O2(g) ---> CO2(g) ΔH° = -340 kJ H2(g) + (1/2)O2(g) ---> H2O(ℓ) ΔH° = -211 kJ

Answers

Answer:

The enthalpy for given reaction is 232 kilo Joules.

Explanation:

C_2H_2(g) + (5)/(2)O_2(g)\rightarrow 2CO_2(g) + H_2O(l), \Delta H^o_(1) = -1,123 kJ...[1]

C(s) + O_2(g)\rightarrow CO2(g), \Delta H^o_(2) = -340 kJ..[2]

H_2(g) + (1)/(2)O_2(g)\rightarrow H_2O(l) ,\Delta H^o_(3) = -211 kJ..[3]

2C(s) + H_2(g)\rightarrow C_2H_2(g),\Delta H^o_(4) =?..[4]

2 × [2] + [3] - [1] ( Using Hess's law)

\Delta H^o_(4)=2* \Delta H^o_(2)+\Delta H^o_(3) - \Delta H^o_(1)

\Delta H^o_(4)=2* (-340 kJ) + (-211 kJ) - (-1,123 kJ)

\Delta H^o_(4)=232 kJ

The enthalpy for given reaction is 232 kilo Joules.

According to the equation below, which of the following will cause the concentration of H2SO4 to increase? 2NaHCO3 (s) + H2SO4 (aq) ⇄ Na2SO4 (aq) + 2H2O (l) + 2CO2 (g) View Available Hint(s) According to the equation below, which of the following will cause the concentration of H2SO4 to increase? 2NaHCO3 (s) + H2SO4 (aq) ⇄ Na2SO4 (aq) + 2H2O (l) + 2CO2 (g) addition of some NaHCO3 (s) addition of some Na2SO4 (aq) removal of some H2O (l) removal of some CO2 (g)

Answers

Answer:

Addition of some Na₂SO₄ (aq).

Explanation:

2NaHCO₃ (s) + H₂SO₄ (aq) ⇄ Na₂SO₄ (aq) + 2H₂O (l) + 2CO₂ (g)

According to the Le Chatelier's principle, the addition of Na₂SO₄ to the reaction would lead to shift to the direction of the reaction that consumes Na₂SO₄, in order to reestablish equilibrium. Since the reaction that consumes Na₂SO₄ is the reaction that produces H₂SO₄, the concentration of H₂SO₄ would increase.

At 1 atm, an unknown sample melts at 49.9 °C and boils at 209.5 °C. If the temperature is 0°C, what is the state of matter for the sample?

Answers

Answer:

The correct answer is solid.

Explanation:

Based on the given information, it is evident that at 1 atm pressure and 49.9 degrees C the melting of the sample takes place, that is, the unknown sample transforms into the liquid at the mentioned temperature. It can also be said that below 49.9 degrees C, the sample stays at solid-state. From all this, we can also state that at temperature 49.9 degrees C, both the liquid and the solid-state of the sample stays at equilibrium.  

As one goes higher, that is, above 49.9 degrees C and up to 209.5 degrees C, the sample remains at liquid state. However, the boiling point of the sample is 209.5 degrees C, which shows that the sample becomes gas above 209.5 degrees C. Thus, the sample remains at solid-state below 49.9 degrees C, at liquid state between 49.9 degrees C to 209.5 degrees C, and a gaseous state above 209.5 degrees C. Hence, if the temperature is 0 degrees C, then solid will be the state of matter for the sample.  

How does evidence of chemicalreactions indicate that new substances
with different properties are formed?

Answers

The chemical reaction indicate the formation of new substance by change in nature of original compound and shows chemical changes in the reaction.

What is chemical reaction?

Chemical reaction is defined as  process in which two or more molecules collide with the proper orientation and enough force to produce a new product.

It is also defined as a procedure in which one or more compounds, known as reactants, are changed into one or more distinct substances, known as products.

There are mainly seven types of reaction.

  • Synthesis reaction
  • Decomposition reaction
  • Displacement reaction
  • Double displacement reaction
  • Combustion reaction
  • Redox reaction
  • Acid-Base reaction

Thus, the chemical reaction indicate the formation of new substance by change in nature of original compound and shows chemical changes in the reaction.

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Answer:

Changes in Properties Changes in properties result when new substances form. For instance, gas production, formation of a precipitate, and a color change are all possible evidence that a chemical reaction has taken place. ... Change in Color A color change can signal that a new substance has formed.

Explanation:

How many grams of acetic acid are needed to react with 55.5 g of salicylic acid?

Answers

Idk ask other person
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