Error in DAT Destroyer?

[Ibraiz]

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Hi,
I may be wrong or misunderstanding the information. Question # 133 from DAT Destroyer 2009 about titrating a strong acid with a strong base. Please find the question and answer in the attachment and advise.

Thank you

 

[DeathNote]

Hi,
I may be wrong or misunderstanding the information. Question # 133 from DAT Destroyer 2009 about titrating a strong acid with a strong base. Please find the question and answer in the attachment and advise.

Thank you

It is 1.2E-3 (moles KOH) - 6.0E-4 (moles of HBr) = 6.0E-4 (mole of leftover base)

it just so happens that the excess base is the same number as the HBr!

 

[Ibraiz]

make sense, thanks DeathNote.

It is 1.2E-3 (moles KOH) - 6.0E-4 (moles of HBr) = 6.0E-4 (mole of leftover base)

it just so happens that the excess base is the same number as the HBr!