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What volume of 1 M sulfuric acid is needed to titrate a 12 ml sample of 0.45 M NaOH?

Answer 1

Owen Ambrose

A #2.7*mL# volume of sulfuric acid is required for equivalence.

The stoichiometric equation is required.

#H_2SO_4(aq) + 2NaOH(aq) rarr Na_2SO_4(aq) + 2H_2O(l)#

And thus we need #1/2# an equiv of sulfuric acid, i.e.

#1/2xx12xx10^-3*Lxx0.45*mol*L^-1=2.7xx10^-3*mol#

#"Volume"="moles"/"concentration"=(2.7xx10^-3*mol)/(1*mol*L^-1)#

#=2.7xx10^-3*L=2.7*mL#..........

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Answer 2

Ellie Andrews

0.0126 L or 12.6 mL

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.