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aleksley [76]
2 years ago
6

Science is the study of the natural world through blank and blank ​

Chemistry
1 answer:
kirza4 [7]2 years ago
7 0

Answer: Observation and experimentation

Explanation:

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Explain why when a strong acid is titrated with a strong base, the pH at equivalence pt. is equal 7, while in the case of a weak
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Explanation:

The pH of a strong acid when titrated with a strong base is equal to 7 because of the formation of a neutral salt which corresponds to pH = 7.

But on the other hand,

The titration of the weak acid and strong base, the reaction taking place is:

HC₂H₃O₂  +  OH⁻  ⇒ H₂O  +  C₂H₃O₂⁻

At the equivalence point, the pH is greater than 7 because of the conjugate base formed in the above reaction which gives OH⁻ in the solution as:

C₂H₃O₂⁻ + H₂O ⇒ HC₂H₃O₂  +  OH⁻

<u>The hydroxide ions produced in the above reaction results in the pH above 7 (basic).</u>

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3 years ago
What is the (OH-) in a solution with a pOH of 6.48
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-pOH= log [ OH^{-}]

Then we can transform the equation into:

[ OH^{-}]= 10^{-pOH}

Then we are able to plug in the pOH and directly get [OH-]:

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