Answer to Question #168838 in General Chemistry for Madison

Question

what volume (in mL) of a 0.150 M HNO₃ solution will completely react with 35.7 mL of a 0.108 M Na₂CO₃ solution according to the following balanced chemical equation?

Answer 1

First part:

Based on the volume and concentration of the Na2CO3 solution, there is 3.86 mmol of Na2CO3 available to react with HNO3 . Considering the stoichiometric relationship, you then calculate the volume of a 0.150 M solution that contains 7.71 mmol of HNO3 .

51.4 mL

Second part:

Since the reactant and product have a stoichiometric relationship that is 1:1, 0.00386 mol of Na2CO3 can react to form 0.00386 mol of CO2 . The molar mass of CO2 (44.01 g/mol ) is then used to convert the moles to the corresponding mass in grams.

0.170 g