2016 October 3, 4
Pre-Lab: due as you enter the laboratory class.
1. Write the formula for acetic acid, and calculate its molar mass.
2. Write the formula for sodium bicarbonate, and calculate its molar mass.
3. Write the complete, balanced molecular equation for the reaction of acetic acid and sodium bicarbonate—remembering that carbonic acid is unstable and produces carbon dioxide gas and water.
4. For the reaction of 2.00 g of acetic acid with 2.00 g of sodium bicarbonate:
a. What is the total mass of the reactants?
b. According to the law of conservation of mass, what should be the mass of all products formed, together with all remaining reactant(s), at the end of the reaction?
c. Consistent with the balanced reaction in question 3, and the masses in question 4, what is the limiting reactant?
d. Using the limiting reactant found above, calculate the mass of carbon dioxide formed during this reaction?
e. How would this mass of carbon dioxide affect the final mass of the components after the reaction is complete?
f. Calculate the mass of the remaining reactant and that of the lingering product(s).
lulsab
exp_6_pre-lab_limiting_reagents_f16.pdf.docx
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