Question

How many milliliters of 0.112 M Na 2 CO 3 will completely react with 27.2 mL of 0.135 M HNO 3 according to the following reaction? 2HNO 3 (a q ) +Na 2 CO 3 ( aq )  H 2 O (l ) + CO 2 ( g ) + 2NaNO 3 ( aq )

Answer 1

The balanced reaction between Na₂CO₃ and HNO₃ is

From, balanced reaction it is observed that, Na₂CO₃ and HNO₃reacts in 1:2 ratio.

ie

....(1)

Given:-

Now, calculate Moles of HNO₃

Now, calculate moles of Na₂CO₃ from moles of HNO₃

From eq(1) we get,

  

Therfore,

Hence, moles of Na₂CO₃ = 0.001836 mol.

Now calculate volume of Na₂CO₃

  

Therefore, 16.39 milliliters of 0.112 M Na₂CO₃ will required to completely react with 27.2 mL of 0.135 M of HNO₃.