Molar Ratio of Titration (1 Viewer)

unano

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hey guys just having a little trouble understanding the molar ratio in titration calulations. like if the molar ratio of acid to base is 2:1 which one do i times by 2 when calculating number of moles. heres an e.g. questions:

What is the concentration of H2SO4 if 29mL is required to neutralise 25.00mL of 0.2mol/L NaHCO3.

the equation would be:

H2SO4 + 2NaHCO3 ------> Na2SO4 + 2H2O + 2CO2

so what do i do from here?
thanks guys
 

Viru10

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yeh so in this case by the equation;

2 x number of moles of acid = number of moles of base
(because in the balanced equation, the Na2Co3 has twice the number of moles)

hence number of moles of acid = number of moles of base/2

Then its just the normal calculations after to calculate conc. of acid using: C = n/v.

Hope this helps :)
 

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