Exercise 7.42 - Enhanced - with Feedback You may want to reference (Pages 295 - 299) Section 7.4 while completing this problem. What minimum mass of H2SO4 would you need? Express your answer in grams. Sulfuric acid dissolves aluminum metal according to the following reaction: ΠΠΑΣΦ ? 2 Al(s) + 3 H2S04(aq) → Al2(SO4)3(aq) + 3 H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 14.6 g. Submit Request Answer Part B What mass of H2 gas would be produced by the complete reaction of the aluminum block Express your answer in grams. ΑΣΦ т 3 Submit Request Answer P Type here to search Prt Scn F8 End Home F9 F6 F7 60 60
Thermochemistry
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.
What minimal mass of H2SO4 would u need? What mass of H2 gas would be produced by the complete reaction of the aluminum block? Both in grams?
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