Answer:
The ratio of proton acceptor to proton donor is 1000
Explanation:
In a weak acid, the proton donor is HA and proton acceptor is A⁻. Using Henderson-Hasselbalch formula:
pH = pka + log₁₀ [A⁻] / [HA]
7,0 = 4,0 + log₁₀ [A⁻] / [HA]
3,0 = log₁₀ [A⁻] / [HA]
10³ = [A⁻] / [HA]
1000 = [A⁻] / [HA]
That means <em>the ratio of proton acceptor to proton donor is 1000</em>
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Answer:
NaCl
Explanation:
none of them. Salt presents NaCl
The volume of the gas when the container is cooled from a temperature of 300 K to 200 K is 0.83 L
<h3>Charles' law </h3>
Charles' law states as follow:
V₁ / T₁ = V₂ / T₂
Where
- V₁ is the initial volume
- T₁ is the initial temperature
- V₂ is the new volume
- T₂ is the new temperature
<h3>How to determine the new volume </h3>
From the question given above, the following data were obtained
- Initial volume (V₁) = 1.25 L
- Initial temperature (T₁) = 300 K
- New temperature (T₂) = 200 K
V₁ / T₁ = V₂ / T₂
1.25 / 300 = V₂ / 200
Cross multiply
300 × V₂ = 1.25 × 200
Divide both side by 300
V₂ = (1.25 × 200) / 300
V₂ = 0.83 L
Learn more about gas laws:
brainly.com/question/6844441