Answer to Question #242195 in General Chemistry for KING

General Chemistry

Question #242195

Calculate ∆Hrxn for

Ca(s) + 1⁄2 O2(g) + Co2 (g) → CaCO3(s) given the following set of reactions:

Ca(s) + 1⁄2 O2(g) →CaO(s) ∆H = -635.1 kJ CaCO3(s) →CaO(s) + CO2(g) ∆H = 178.3 kJ

Expert's answer

∆Hrxn = ∆H1 + ∆H2

= -635+178

= -457kJ

Learn more about our help with Assignments: Chemistry

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. Write the balanced overall equation for the followingprocess (equation 3) and calculate ∆HoveralI.
2. . Calculate ∆H°rxn for each of the following:(a) 2H2S(g) + 3O2(g) → 2SO2(g) + 2H2O (g)(b) CH4(g
3. Copper(I) oxide can be oxidized to copper(II) oxide: Cu2O(s) + 1⁄2 O2(g) →2CuO(s) ∆H°rxn = -
4. Stearic acid (C18H36O2) is a typical fatty acid, a moleculewith a long hydrocarbon chain and an orga
5. 10 cm^3 of a 5 x10^-3 mol dm^-3 sulfuric acid is added to an empty volumetric flask. It's pH is
6. Water is good solvent. Relate this property to issues of pollution
7. Analysis:1. What will happen to your number of hits and misses if the marbles were twice as large? W