Which of the following titrations is methyl o | vedclass

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Question

(C) Methyl orange is a weak base indicator with a $pH$ range of approximately $3.1$ to $4.4$.It is best suited for titrations involving a strong acid

Vedclass · Accepted Answer

$HCl + NaOH$

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(C) Methyl orange is a weak base indicator with a $pH$ range of approximately $3.1$ to $4.4$.It is best suited for titrations involving a strong acid and a weak base,or a strong acid and a strong base where the equivalence point falls within its $pH$ range.Among the given options,$HCl$ is a strong acid and $NaOH$ is a strong base,resulting in a neutral salt where the equivalence point is at $pH = 7$. However,methyl orange is commonly used for strong acid-strong base titrations in educational contexts.$CH_3COOH + NH_4OH$ involves a weak acid and a weak base,which is not suitable for simple indicators.Therefore,the titration of a strong acid $(HCl)$ with a strong base $(NaOH)$ is the most appropriate choice among the options provided for the use of methyl orange.

Which of the following titrations is methyl orange the best indicator for?

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