Question

The fizz produced when an AlkaSeltzer® tablet is dissolved in water is due to the reaction between sodium bicarbonate, NaHCO3, and a triprotic organic acid, citric acid, H3C6H5O7. The products of this reaction are carbon dioxide gas, water, and sodium citrate.

3 NaHCO_{3 (aq)} + H₃C₆H₅O_{7 (aq)}→ 3 CO_{2 (g)} + 3 H₂O_(l) + Na₃C₆H₅O_{7 (aq)}

In an experiment 1.00 g of sodium bicarbonate and 1.00 g of
citric acid are allowed to react.

A.Which of the five compounds in this balanced equation is the limiting reactant?

B. Given the reaction and conditions described in the previous question, how many grams of carbon dioxide form? Report your answers to 2 s.f. and do not include units in your answer.

C. Given the reaction and conditions described in AlkaSeltzer® question, what mass of the excess reactant remains after the limiting reactant is completely consumed? Report your answers to 2 s.f. and do not include units in your answer.

Answer 1

Answer:-

This question is solved by using the simple concept of stoichiometry which involves the relationship between masses of reactants and products.

The answer is given in the image,

Anjalls; Здавсот насеѕtoo, - Зcopept 342014) Naz 8450799) Моlол тект Чоно, = 23++/2+3x16 - 84 almoi. моlал тал из соҳ01 - 6x/2+8x)+7xit = 19 28/mo), в) 3x848 Нанд = 1922 H3C07 1 •oo3 +HCO3 = 142 зход из ҳо; го. 162 нҫЯҫ018. But mano 436 4507 = 1.00g. So liming reactad = NaHCO₃ as it confulones completely В 3х84 & Naн соз 3x 440 0 1-оојан 0 = 3244 - о. 52 a co, үпола Соу – о. 5 23. Co mass of excess reactent remained = 1.00 – 0-16 — о. 24-а. З» B4 co,