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A is a solution containing 6.22g of an acid H²Ym-³. B contains 3.90gdm-³ of sodium hydroxide.
(A) put A into the burette and titrate it against 25.0cm-³ portion of B using methyl orange as indicator. Repeat the titration to obtain consistent titres. Tabulate your reading and calculate the average volume of A used.
(B) from your results and information provided above, calculate
I. Concentration of B in moldm-³
2. Concentration of A in moldm-³
3. Calculate the molar mass of A

Sagot :

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