Given the balanced equation: H2SO4 + Na2CO3 --> NA2SO4 + H2O + CO2 In a titration where H2SO4 is added from a buret to an aqueous solution of 0.850 g Na2CO3, 46.75 mL of H2SO4 are needed to reach the permanent endpoint of the titration. A) Find the number of moles of Na2CO3 in the reaction. B) Find the number of moles of H2SO4 in the reaction. C) Find the mass/mass % of H2SO4 based on the above information about reaching the endpoint of the titration. The molar mass of Na2CO3 is 105.99 g/mol. The molar mass of H2SO4 is 98.08 g/mol. The density of H2S04 is 0.985 g/mL.
Given the balanced equation: H2SO4 + Na2CO3 --> NA2SO4 + H2O + CO2 In a titration where H2SO4 is added from a buret to an aqueous solution of 0.850 g Na2CO3, 46.75 mL of H2SO4 are needed to reach the permanent endpoint of the titration. A) Find the number of moles of Na2CO3 in the reaction. B) Find the number of moles of H2SO4 in the reaction. C) Find the mass/mass % of H2SO4 based on the above information about reaching the endpoint of the titration. The molar mass of Na2CO3 is 105.99 g/mol. The molar mass of H2SO4 is 98.08 g/mol. The density of H2S04 is 0.985 g/mL.
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Chapter1: Chemical Foundations
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Transcribed Image Text:Given the balanced equation:
H2SO4 + Na2CO3 --> Na2SO4 + H2O + CO2
In a titration where H2SO4 is added from a buret to an aqueous solution of 0.850 g Na2CO3, 46.75 mL of H2SO4 are needed
to reach the permanent endpoint of the titration.
A) Find the number of moles of Na2CO3 in the reaction.
B) Find the number of moles of H2SO4 in the reaction.
C) Find the mass/mass % of H2SO4 based on the above information about reaching the endpoint of the titration.
The molar mass of Na2CO3 is 105.99 g/mol. The molar mass of H2SO4 is 98.08 g/mol. The density of H2S04 is 0.985 g/mL.
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