The reaction below occurs between acetic acid (found in vinegar) and sodium bicarbonate (baking soda). This is the reaction studied in this laboratory. HC₂H302(aq) + NaHCO3(aq) → Acetic Acid (Vinegar) Sodium Bicarbonate (Baking Soda) + H₂O(1) + Water NaC₂H3O2(aq) Sodium Acetate CO2(g) Carbon Dioxide 1. What is the mole ratio between the vinegar and the sodium bicarbonate? 2. What is the mole ratio between the vinegar and the carbon dioxide? 3. What is the mole ratio between the baking soda and the carbon dioxide?
The reaction below occurs between acetic acid (found in vinegar) and sodium bicarbonate (baking soda). This is the reaction studied in this laboratory. HC₂H302(aq) + NaHCO3(aq) → Acetic Acid (Vinegar) Sodium Bicarbonate (Baking Soda) + H₂O(1) + Water NaC₂H3O2(aq) Sodium Acetate CO2(g) Carbon Dioxide 1. What is the mole ratio between the vinegar and the sodium bicarbonate? 2. What is the mole ratio between the vinegar and the carbon dioxide? 3. What is the mole ratio between the baking soda and the carbon dioxide?
Chemistry for Engineering Students
3rd Edition
ISBN:9781285199023
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter4: Stoichiometry
Section: Chapter Questions
Problem 4.77PAE: The pictures below show a molecular-scale view of a chemical reaction between H2 and CO to produce...
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Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Question
Transcribed Image Text:Chem 1101: Elements of Chemistry
equation are the molar ratios for the reaction. For example, because 3 mol of Ba(NO3)2 react
with 2 mol of Na3PO4, the molar ratio of Ba(NO3)2 to Na³PO4 is 3:2.
I When the reactants are not present in the exact stoichiometric amounts required by the
balanced equation, one reactant is in excess, and the other reactant is completely consumed.
The maximum amount of product that can form is determined by the amount of reactant that is
completely consumed, the limiting reactant.
Using the previous example; if 6 mol of Ba(NO3)2 reacts with 8 mol of Na3PO4, how many mol of
Ba3(PO4)2 forms. To answer this question the amount of Ba3(PO4)2 produced must be calculated
from each reactant.
6 mol Ba(NO3)2,1 mol Ba, (PO4)₂2
3 mol Ba(NO3)₂
1
8 mol Na3PO4
1
·X
1 mol Ba, (PO4)2
2 mol Na3PO4
= 2 mol Ba, (PO4)₂
-= 4 mol Ba, (PO4)2
Experiment 11
Deta
Since Ba(NO3)2 produces the smaller amount of product, it is totally consumed in the reaction
and is called the limiting reactant. When all the Ba(NO3)2 is consumed, the excess Na3PO4 has
nothing to react with and therefore the reaction must stop.
Pre-lab Questions
The reaction below occurs between acetic acid (found in vinegar) and sodium bicarbonate
(baking soda). This is the reaction studied in this laboratory.
+ H₂O(1) +
Water
HC₂H3O2(aq) +
NaC₂H3O2(aq)
NaHCO3(aq) →
Sodium Acetate
Acetic Acid Sodium Bicarbonate
(Vinegar)
(Baking Soda)
CO2(g)
Carbon Dioxide
1. What is the mole ratio between the vinegar and the sodium bicarbonate?
2. What is the mole ratio between the vinegar and the carbon dioxide?
Stoichiometry
3. What is the mole ratio between the baking soda and the carbon dioxide?
2
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